CapableObjects Knowledgebase

Changelog for ECO5

Jonas Högström — Sun, 10 Jan 2010 09:52:47 GMT

5.0.0.4754 - 2010-01-10

Process diagrams:

Processdefinition screen made a little bigger to show button texts

Extension symbols:

TagExtensions can now be associated with a symbol
Extensionssymbols now has a EnsureDefaults button that create a State attribute, a trigger method symbol
State symbol drawn behind state attributes if the symbol is available
Trigger symbol drawn behind trigger methods if the symbol is available
Extension symbols now get their size depending on PlacedClass.Size property
TagExtensionSymbols are rendered next to Class names, Attributes, Methods, Association ends, VACDefinitions and VACSteps

Asp:

Added full assembly identification to the registration of the ECO web prefix in the default web.config
Added MaxAnswers and Offset to EcoDataSource for the PS-Expression
Fixed incorrect error message in ASP.Net autoform method-builder

ASP Providers:

Added threshhold how often to update the "last user acitivity" to avoid excessive database hits when user views pages.
Bug in EcoMembershipProvider OclPsQuery overload forgot the last variable giving errors on LookupUserByEmail
New static property Eco.Web.AspProviders.EcoMembershipProvider.PasswordHashKeyAsHexString
Used when PasswordFormat == MembershipPasswordFormat.Hashed.
If this is not set, machineKey.ValidationKey will be used. machineKey.ValidationKey is often set to "AutoGenerate" and not to a specific value - that will not work for our purposes. Setting PasswordHashKeyAsHexString to a known value makes it easier for you to move the hash passwords to other servers (since it does not change),and also makes the password hashes work in a webfarm set up (that use several machines that may have different machineKeys in machine.config ).

ViewModels:

A new setting UsePlacingHints has been added to the ViewModelEditor, if unchecked the viewmodel will not show any placing hints settings.
ViewModelContent WPF component added - this allows you to use a ViewModel in xaml and use standard wpf binding to hook up all viewmodel artifacts
ViewModel creation methods has been extended with EcoSpaceType and EcoSpaceTypeName to better support creation before access to EcoSpace
ViewModels allow for definition of Validation rules that can be associated to columns
ViewModel now reads the ViewModelValidation's and makes them accessible in runtime
ViewModelContent and ViewModelWPFUserControl now use the new ViewModel validations
ViewModelContent now allows for actions
ViewModelWPFUserControl now create an Image component when the ViewModelColumn type evaluates to byte[] . It takes the byte-array, turns it into a stream and assigns it to the imageStreamSource via a IValueConverter
Winforms: SpacerPanels And DesiredSize updates to correct bugs
Winforms: TabOrder did not handle grids
Winforms: Added an event on ViewModels that fires when the contextmenu is closed
Strange behavior of winforms control Visible property when used with databind - accepted that it does not work as expected and implemented workaround in ViewModel
InitDynamicViewModels: When called, the DynamicViewModelPath will be checked and ViewModel will be reloaded if found and if new; - Now you can change view models while your app is running
ViewModelDialog Sort columns alphabetical or in taborder
ViewModelDialog arrows highlighted when hovered
ViewModelDialog Presentation span is copied from template Column
ViewModel vCurrent variables bug - ActionLanguage Evaluate did not get access to the Variables.

Examples:

Updated to work with latest build
Added new sample: "The Hockey sample"

WPF:

WPF image converter now handles empty stream
ViewModelWPFUserControl now sets image width and height
CurrencyManagerHandleWPF has a new property AutoSelectFirst. When set a view will get the first row automatically selected - this is set when ViewModelContent use handles
ViewModelWPFUserControl - new DependcyPropert Rootobject you can bind to

Modlr

Modlr tree, now it shows effective name of associationends in searchdialog
Modlr tree, doublclick on attributes,methods and associations names brings up AutoClass diagram
Modlr tree, Processes and steps are included in search
Modlr popup menu re-arranged
Print did not look the same as screen rendering due to font family differences.
PrintPreview now works in VS. Printout has diagram name and print time at the bottom
Diagram printouts and preview has been enhanced
Diagram image rendering and cropping updated
Publish documentation took forever due to a bug. Now it also crops images.
Html documentation, cross references, css extracted to seperate file
Found and fixed the Snapping and Squareline bug that sometimes made diagrams dirty just by looking at them.
Copy paste in Class-diagrams, StateDiagrams and VACDiagrams
Added support for TaggedValues in the ViewModels.
ViewModel elements now appear in the PropertiesGrid in VS and in Gaffr.
The cardinality labels in diagrams was swapped so that the cardinality always came far away from rooted point. Fixed
VACDefinitions now show associated diagrams
refactored calculating the effective name for an associationend
Simple types in ViewModelVariables had issues
Fixed 860: Object inspector use same logic as diagram for setting cardinality on association ends
Fixed 862 : Errors for ViewModels where only shown on first check. Fixed.
Fixed problem in "Show Model Errors". Some model errors would cause the dialog to crash VS.
Several minor glitches in turning modellayer into a umlrt when using Child mapped DefaultSuperclass
When Objectinspector changes Default superclass we now set/update the tagged value so that it is set on prototype run.
Try catch around ecomdl load to find reported exception in file open
Fixed problem with "navigate to code" when the solution contained folders.
open package files with readaccess when possible to avoid problems with referenced files located in the "program files" folder
If the ecomdl contained file references that was not available the whole loading process was stopped. Now it warns and continues.
Found the lingering bug in Modlr with 2 ecospaces that could cause you to lose changes. It was connected to external file update and reload.

Persistence

Missed quoting table names when moving data between tables in evolve-operation.
Fixed problem with null-reference exception when an abstract class has no discriminator during evolve.
Added possibility to force eco to not add a keydefinition to a class by setting tagged value PrimaryKey to "<NONE>"
Objects in Xml-files are now stored in a deterministic order (sorted in their key-value).
Fixed problem in evolve, when UpperCaseFunctionName in SqlDatabseConfig contains a "{0}"
Mapping table now has a primary key so that it can be generated on the azure platform.
Added SqlServer attribute mapper StringAsNVarCharMax for Azure compatibility
Fixed 875: Versioned classes can inherit from a non-versioned class if it does not have a main-alias (is childmapped).
TableTable now has a primary key (required for azure databases)
Fixed filenames in wizard for new ECO models
Fixed minor bug in SyncHandler.PurgeOldBlocks
Prevent commitqueue in Synchandler to grow without control.
Added PMP.ReleaseInstance
Database create had a bug when using the config.MultiTenantPrefix; wrong tables were dropped.
Added new SqlDatabaseConfig property: "MaxAliasNameLength". defaults to 12 for backwards compatibility, but in most databases, this can be set to the same value as the MaxDbIdentifierLength (added higher default values for all databases that has a specific MaxDbIdentifierLength);
Fixed problem with duplicate alias names when two mangled names differed only in case.
Fixed null-reference problem when querying tables that are parent-mapped with OclPS.

Core:

Fixed 879: INotifyPropertyChanged events were not fired if the object did not have any subscribers
Fixed 880: Assigning a singlelink with "nil" in EAL caused a null reference exception.
Fixed 878. Now IList<ModeledClass> can be used in Query methods in OCL.
Publisherevents are now delayed when creating link-objects.
Added support for delaying publisherevents
Sync-manager on the client side crashed with a null-reference exception if it received an "ObjectCreated" message for an object that has already been loaded in the ecospace.
Supress errormessage about invalid ocl-operations when model is not browsable
Fixed problem with initializing models where the package-classes doesn't have an "id".
Fixed problem with implicit link-objects that inherit from a default root class. Now they will have a dynamically generated .net-type that is a subclass of the dotnet class for the superclass.
Added missing resubscription-instructions when creating variablereference-nodes
Implemented GetValue<T> for TuplePartImpl
LinkOperationCache: Fixed missing events for multilinks when deleting link-objects
Primitive types where the .net name differs from the ModelLayer canonical name are now installed in the runtime model with their canonical name as well (Integer, UnsignedInteger, UnsignedInt16, UnsignedInt64 and SignedByte)
Fixed problem with implicit link-classes in packages with default superclass where the superclass had codederived attributes.
Fixed 869: Fixed problem when passing null-parameters to a trigger. Now the static type of the parameters will be resolved from the trigger method declaration.
CanTrigger now handles inherited triggers too.
IMethod will now get its Id-property set when building the runtime model
ElementCollectionImpl handles nullable values better
Fixed issue with inspecting the same assembliy multiple times when trying to resolve a typename
Added api to clear the cached expression parsetrees in the OCL evaluator. They are also cleared when the ecospace is deactivated.
Fixed problem in linkoperationcache when deleting linkobjects. The notification was sent out too soon.
Fixed the bugs in recent optimizations in the ControlPack
Initialize the capacity in UpdateItemList. Avoid creating lots of objects when we have already realized the event will be a Reset
Fixed 859: ReverseDerived associations didnt work, both codegen and core was incorrect.
Methods with parameters of type IList<T> will now be callable in OCL.

IDE:

Fixed 0775: Output window Show was called even when it was visible already giving a blinking effect and poor performance
Updated mvc template with changes in MVC 1.0 RTM

Winforms:

Fixed issue with nullable parameters when building the method-page in Winform autoforms.
Nullable enums will not crash autoforms anymore, but will still not display a null-value in the combo

5.0.0.4560 - 2009-10-12

Modlr:

Fixed issue with diagram combobox in modlr toolbar. Would cause modlr to hang VS.

5.0.0.4559 - 2009-10-11

Modlr:

Added "Overview" option in diagram combo
SnapGridSize property added to AbstractDiagram; and snapping implemented in Diagram rendering
inherited derived association ends was incorrectly marked as codederived in the DerivationExpressions editor
Fixed problem overriding with codederived inherited attributes
non-navigable ends of derived associations don't display the label anymore
DerivationExpressions now detect if a member is codederived and doesn't allow editing
DerivationExpressions now use RuntimeName when generating the TaggedValue

Core:

Tuples types are now cached in the typeSystem so that accessing the ECO tuple type for the same .net struct type twice will return the same tuple type.
Fixed 846: ExternalIdService.ObjectForId now returns null if the id is null or empty string
foreach (ITransition Transition in vertex.Outgoing) failed when region had no start state (vertex==null)

Persistence:

Added support for attributemappers to intervene in sorting on their columns. Required for for example Sqlserver Text-column.
Database updates now handles cyclic dependencies between new objects by first saving the objects, and then in a second pass updating all embedded singlelinks on the objects

Ocl:

Ocl operation "EmptyList" was incorrectly returning an element instead of a list

IDE:

Eco4 upgrade now also upgrades version number of DroopyEyes assemblies

ViewModels:

Small viewmodel Grids did not always fit in the designated TableLayoutCell

ASP

WebAutoForm doesn't call EnsureRelatedObjects for derived roles anymore

5.0.0.4539

CodeGen:

Added support for having custom names for "innerlinks" and "linkroles"
better codegen for assocends (regarding hasUserCode)
Added SetterVisibility on AssociationEnds
Statemachine constants had region in them and that was wrong
Fixed bug in codegen when generating a new user method that is abstract and has return type. Now no body is emitted.
More improvements in codegen-performance, now "UpdateProjectFiles" doesn't need to locate each file via the slow COM-interfaces of VS.
Improved performance when codegenerating large models.
Added more detailed status messages in status bar when codegenerating.
The default namespace for sub-packages will now contain a "." between each parent packagename
map "(", ")" and "&" to "_" when generating the runtime names for model elements
code Derived association partial methods got model name on type instead of RuntimeName - fixed
Fixed renaming of the namespace in the sourcefile for the package when the package namspace is changed in the model
Fixed codegen issue for image and blob (any attribute type that generates an array-type)
Added support for Package.AdditionalNamespaces in codegeneration
Added support for array-typed attributes in the codegeneration
Added property to Package - GenerateNullableTypes. When set to false (default is true), nullable attributes will be generated as normal attribute types (int instead of int?) and use a tagged value instead to indicate for ECO that it should allow null
Every trigger method gets an TriggerName_CanTrigger method that returns null and executes AsIObject().StateMachine.CanTrigger("TriggerName",arguments).
fixed bug with how IsQuery-attribute is added to user-methods when codegeranting
InvalidOperationException during codegen will now only show the message, and not the whole callstack.
Fixed codegen problem when a file in the solution doesn't exist on disk
When codegen deletes a file, it renames it to *.deleted and then removes it from the project, now it first deletes any existing file with the name *.deleted.
CodeGen now activates the modlr-window with the model that is being codegenerated to make sure that it doesn't accidentally codegen for another model.

Ocl:

Added ocl-operations aDecimal.toDouble and aDouble.toDecimal
Added new ocl-method: nullValue. example: String.nullValue, Customer.nullValue simply returns a typed null-value.
Two new ocl operations: "IsDirty" (for objects) and "IsDirtyMember" (for members). Currently doesn't subscribe to the transition from dirty to clean.

Winform:

Winform Autoform control for enums now use a DropDownList.
EcoSpacedebugger/Dirtyobjects-panel now shows the object-state (dirty/new/deleted)
Added a textbox for the ecospace debugger that can be dragged to and act as a context for the ocl expression
Autoforms now show a "*" after the membername for modified members
Fixed crash on doubleclick in Multilink tab-pages in winform autoform
Added a cell-formatting event for autoforms and ecospacedebugger that handles empty byte[] so that the grid itself doesn't throw an exception when it tries to render the image.

Core:

Fixed 853: Setting nullable enums via the Element-interfaces didn't work.
Fixed issue with LinkOperationCache. For indirect associations (with link-objects), both SinglelinkCatchers and MultilinkCatchers received the Link-role rather than the main role.
Fixed 843: AssociationEnds to Link-objects were not populated if the main role was not already fetched
Partial fix for bug 839: Associations with link-objects will now notify all links after both ends are completed.
Added a new tagged value for the ecospace: Eco.InitializeNullableStringsToNull.
IElement.GetValue<T> now returns null if the cast is invalid.
Fixed sortorder for the nullrow when NullRowMode = First or Last.
Added extension methods for IEcoObject (GetValue<T>() and ServiceProvider())
Fixed bug when trying to do EnsureContentsCurrent on a derived association
Fixed bug in how ECO resolves types in references assemblies.
Fixed problem with derived members. When the new value was an explicit null-value in ocl (if xxx then yyy else nil endif), the derived member would retain the old value.
Fixed problem with triggerqueries ("mytrigger?(parameters)") that takes null-parameters
Implicit link classes now also respect the setting "DefaultSuperClass" in the package of the association.
Added missing registration of IActionLanguageTypeService in ServiceProvider
Fixed bug when creating a tuple-instance where one part is an object instance that is a subclass of the part-declaration
Multiplicityconstraints now use the "Presentation" of the associationEnd in the description of the constraint
Added AllowPartialTrusted callers to all runtime assemblies
Fixed problem in Linq2ocl when an expression refers to a property of a non-eco object
Fixed problem when a linq2Ocl query contained a static property like "Environment.MachineName",

Modlr:

HasUserCode is not imported from EcoModeler for AssociationEnds anymore
Fixed 847 : Anchors were wrong in the Modlr Prototype-dialog
Fixed issue with disconnecting events in modlr
Added support for "natural" filenames for diagrams, viewmodels and tagextensions in ecomdl-files (not enabled by default for old models yet)
ModelErrors-dialog doesn't recreate the TypeSystem for each span-validation, improves performance dramatically!
Fixed problem when importing ecopackages failed (file locks were not released properly)
Fixed parsing errors when DerivationExpressions contained complex expressions (with line-feeds for example)
UMLClassDiagrams and AutoDiagrams now share the same WPFHost to reduce blinking when switching
Scrollbars correctly initiated for diagram sizes
Current diagram saved to settings and restored on load
Forgot to init the toolwindow with the new ecospace when it was recreated before a load.
When a model is reloaded inside the IDE, tagged values, constraints and a few other elements were duplicated in the xml-files. This is fixed now.
Derived links are still red, but now also dashed.
Links in autoclass diagrams are now black.
Doubleclick in modlr tree gives auto diagram.
Added EditableNotes in flowdocument-rich-text-style
Improved performance when importing/loading large models
fix 796: Import of "body", "Precondition" and "postcondition" from EcoModeler was broken
Fixed EcoModeler import for classes that are placeholders (enum types for example)
Added detection of a few unknown nodetypes in EcoModeler files.
In certain cases placeallunplaced... functions got an index out of bounds ; fixed
Added a button to state diagrams to easily show owning class in autoclassdiagram
Added Navigate to code for attribute and class (before only for method)
Modlr tree changes; now typing is "navigate to match text in same level" and Start edit is done with double-click or F2.
Modlr tree changes; Return and Enter shows AutoClassDiagram for classes, and displays the Diagram when on diagram node.
Added validation of OCL-expressions to the error-form in Modlr
the property for "HasUserCode" is now defined in the properties window for associationends if (and only if) the tagged value is set to true, so that it can be set to false.
Disabled some menuitems for elements in referenced packages
GenericTypes handled in CodeGen and in Modlr Signature parsing
Bug in EcoModelerImport when having complex Generics as parameters: Parameter types may look like this Dictionary<string,Dictionary<string,double>> so a simple split on "," will not suffice. Fixed.
Also bug in EcoModelerImport parameter parse; sensitive to double spaces - fixed.
Fixed problem with importing EcoModeler models with relations between classes and interfaces
EcoModeller imports. IsAbstract checked for "2" in opts param this is changed to check if bit 2 is set - now it works even when other flags are set in ecomodeller
EcoModelerImport issue when importing WeakAssociationSymbol if only one was available of the two stated (now skipped)
EcoModelerImport issue when reference to class pointed out interface import gave halting exception (now skipped)
Added a dictionary with all modlr editor panes so the correct ecospace can be located for a model
Added an event for when the debugger is started so we can check for modified models even if the projects were not compiled.

Persistence:

Fixed problem when two parent mapped classes have the same association. It caused duplicate FKs and Indices
Fixed bug in OclPs when querying AllInstances for parentmapped classes.
Added transaction wrapping when creating triggers/generators for interbase/firebird autoinc columns
Fixed support for FileMappingProvider.ResourceName. It now looks in all assemblies in the project.
Fixed problem with error detection when a class has multiple aliases with autoinc key implementations for the same key-def
Fixed 791: Versioned classes with childmapped superclasses didn't get a stop-time column. caused nullreference exceptions.
Fixed problem with custom primary keys and DefaultSingleLinkColumnName
DefaultORMappingBuilder.IdColumnName now supports expanding the tablename, so setting the value to "<TableName>ID" will cause the primary key to be called "CustomerID"
When a db schema is created, the columns are now sorted in alpha-order.
Firebird now sets the TOP-keyword by default to "FIRST"
SqlDatabaseConfig.MultiTenantPrefix: If set, created tables will be prefixed, and tables without or with other prefix will be ignored by create and evolve.This will let you effectively have multiple eco-created systems in one database instans; Multi tenant.

SQLDatabaseConfig.SqlTopKeyword: The Top keyword as in select Top x field from table.Firebird uses First instead of Top(default)
Added new errormessage for invalid class/id-mapping
Fixed error message when pmapper fails to load data for a member
The implicit "innerlinks" (the association ends on link objects) can now be handled as constrained links (foreign keys in the database) by setting the tagged value IsConstrained=true on the main associationend

ViewModels:

Added example for OnColumnUIOverride
Added ViewModelWPFUserControlOverride to enable better understanding of ViewModels
ViewModelColumns now keep track of AllowNull and renders checkboxes with threestate if applicable
DateTimePickers in winform viewmodels now allow any datetime-value (DateTimePicker.MinDate = DateTime.MinValue)
grid columns in viewmodels are now also marked as readonly if the data-expression results in a readonly element
Setting null element gave exception on ViewModel. Fixed.
SelectionChanged in ViewModelGrids (winforms) removed (cleaned)
Added event that fires when UI grid cells change readonly or visible state
Added preview rects while moving stuff in ViewModel-preview
Drag drop in preview window now respects the internal position of the drag of a large control.
Added context menus to preview to increase and decrease spans.
Subscription on ViewModel that maintains the vCurrent_ variables
ViewModel expressionForReadOnly and expressionForVisible has been reworked to act on root context for all columns.
New variables available in viewModels; vCurrent_[ViewModelClass]
Several bugs for WPF-viewmodels fixed.
ReadOnlyExpression and VisibleExpresion now works for all UI-controls including buttons and grid columns, for wpf and for winforms.
An owners and building sample in WPF with viewmodels
Added property for ViewModelColumns if they have the column name as the presentation.
ViewModels Forced readonly was set on derived attributes and if the expression came out as readonly; I have now added the exception for multilinks, they are not set as forced readonly for the reasons above.
Bug in ViewModel Currency handling for Master-detail-detail fixed.
Styling now tests stylename.TypeName first, then stylename; to enable different styles on control and label
DataGrids does not grow, unless they are in an unbounded environment.
DataGridColumns added to SpawnedArtifacts.
WpfViewModel - we now use styleref to look for a named style resource with this name, and if found it is applied to label and control.
Fixed problem with apply mode in ViewModelEditor
ViewModel ReadOnlyExpression was wrongfully applied to master-details where the expression was not valid (causing silent expceptions)
Fixed problem with initializing the viewmodel combo to the first viewmodel in the list.
Spans: Winform preview button now visible regardless of which element is focused in editor
Preview is now better anchored and can be fitted to visible area.
Added ViewModelUserControl.SetElement in Winform implementation
Bug in helper function GetNonNullableResultType gave ViewModel errors if expression did not return a type at all (like in actions)
FocusFirst in winform viewmodels doesn't focus readonly textboxes
ReadOnlyExpression on COlumn for Grids for WinForms is no bound and updated by ExpressionForReadOnly
ExpressionForReadOnly For ViewModel is checked for errors
Span.ExpressionForReadOnly now has default value '' so that it is not written to file if not set.
ViewModel now has ExpressionForReadOnly that acts on the whole ViewModel and all of the owned controls
ViewModel Visible-Expression implemented for WinForm and WPF , simple controla, Combos, Grids and Buttons.
ViewModel VisibleExpression now also controls visibility of label (if applicable)
You can now drag around already placed columns and drop them on other placed columns.
DragStart of placed viewmodelcolumn was shaky before; fixed
Lookup picklist now has a relation drawn on the left side of the tree.
Preview is now freely zoomable.
Insert and delete column and row in the preview with new contextmenu.
ViewModel GridColumn Width was not correct in WPF, it set only MinWidth, Now also Width
Multiple issues with ViewModelASPNET fixed.
Added property to winform viewform to disable doubleclick behaviour
Added event on winform ViewModelUserControl to allow creation of gridview subclass.
ReadOnlyExpression for Grid columns is now applied by evaluating it against the root object.
the new span for a combobox presentation is now named after the singlelink rather than after the class to avoid nameclashes.
Added predefined column options for attributes of singlelinks.
ColumnForPickList in viewmodel is now decorated with an association arrow in viewmodeleditor
Fixed bugs with preview drag drop; it did not work when using negative xpos,ypos

VS templates:

Default EcoSpace Template now includes the tagged values that can be defined for models.
Added settings for enabling AJAX in the project templates for web.config.

IDE related

Fixed 789: AccessViolation when MessageService is not installed for some reason.

Installer:

If GAC-installer fails, it now shows which assembly failed, and continues to try the rest.

WPF:

EcoObjectDataProvider now has a parameterless constructor so it can be instansiated in xaml. It has a new property Handle.
EcoBinding, could not bind to transformations due to bug. Fixed.

DroopyEyes

Added events to detect when the undoblock of a DirtyObjectCatcher is gone from the undostack.
If there is an EcoSpace transaction running ehen the DirtyObjectCatcher is activated, the activation of the Undoblock is delayed (with a timer) until the transaction is committed.

ASP:

EcoDataSource new property RootExternalId: Given an external ID this takes precedence over the PsExpression, and the resolved object acts as root for the Expression
EcoDataSource new property RootExternalIdClass: If the RootExternalId evals to null a typed null reference (type==RootExternalIdClass) will be used instead
EcoDataSourceView - bug that LoadViewState could get null access when LoadingViewState fixed
EcoDataSourceView - bug that Update took all new values even if they where same as oldvalue -> unpredictable results and overwrites for slow updates. Fixed.
EcoDataSourceView uses RootExternalId if set and RootExternalIdClass if RootExternalId evals to NullRowMode

5.0.0.4334 2009-06-24

CodeGen:

When codegen deletes a file, it renames it to *.deleted and then removes it from the project, now it first deletes any existing file with the name *.deleted.
CodeGen now activates the modlr-window with the model that is being codegenerated to make sure that it doesn't accidentally codegen for another model.
Added a dictionary with all modlr editor panes so the correct ecospace can be located for a model
Added an event for when the debugger is started so we can check for modified models even if the projects were not compiled.
Added friendly message when the codegen cant find the current ecospace
Added a check before codegen that the project only contains one model-file.
Added Class.AdditionalNamespaces to inject new using-clauses in the autogenerated code
Fixed incorrectly qualified classname when an association class and the association belongs to packages with different namespaces.
ModelLayer EcoSpace now keeps a flag for modifications that needs to be codegenned (this flag is reset by codegen). If the IDE tries to build the model project the user is prompted to regenerate the code first.
Fixed 784: methods with body (generated in autogenerated code) now automatically handle parameters that are domain classes in other namespaces.
Fixed invalid location of seealso tag in codegen
Fixed detection of runtimeversion text in generated code so it can be removed before code is saved.

Installer:

Toolbox components were not correctly initialized for new users

Core:

Fixed problem with undoing link-objects that were modified, but not created in the undoblock.
Added LinkOperationCache utility class to intercept operations on single and multilinks
Removed AssociationEnd.HasUserCode
Added ocloperation "oclSingleton" to retrieve the first and only object of a class.
Added parameter to DatablockConverter.ConvertToXml to indicate whether the xml-document should include the model-node.
Added a new method on Eco.Support.TypeSupport: StripNullable, converts a nullable type to the corresponding non-nullable type.
Fixed 780: Changed implementation of IsEqual for constraints so that they are only equal if they are representing the same constraint on the same element (previous implementation considered two constraint equal if they had the same boolean value)
Don't add inherited multiplicityconstraints. Constraints in superclasses are already supposed to be considered
Enumerators for ObjectCollectionImpl now calls EnsureFetchedPage before returning the objectinstance to ensure efficient fetching of objects.

AutoForms:

Nullable types are now handled more generically in winform autoforms.
Winform Autoforms now have the attributes and singlelinks sorted alphabetically

Persistence:

Fixed 781: Guids in SqlServer are now written as '22BF77C0-C1B1-4783-9335-38FC95636A77'. Added configuration property in SqlDatabaseConfig.GuidFormat that is "N" by default, but for SqlServer is "D"
Added CommandTimeout property to all ADO.net 2.0 compatible persistencemappers
Improved algorithm for generating alias-names. truncates the tablename first using ExpandName and then adds "_A"
Int64 keys are now treated like int32 keys when it comes to determining if they should be passed as literals or parameters in queries

Modlr:

model designer now keeps track of modifications to all sub-files (ecopkg, ecodiag etc) and prompts the user to reload the ecomdl-file if any file changes on disk.
Modlr tree; Tooltip on diagram and class to tell file name
Added TaggedValueType.Id to make sure the order in the xml-file for tagextensions is stable
Added Presentation properties to the ObjectInspector for Class, Attribute, Method and AssociationEnd
Added IClass.Presentation, IFeature.Presentation + related Tagged values

EcoSpace designer:

Fixed 782: The tooltip with classes in the PackageSelector now displays classes without namespace and packs more than one on each row so that more classes can be displayed. removed the flicker when the mouse is moved too...

Documentr:

Tab key doesn't tab to readonly parts of the editor
Added "file://" to to EditorDirectory location. Caused problems in IE6

ViewModels:

EcoSpace was browsable on ViewModelWinForm. Fixed
Added action in span-editor for preconfigured combos/Picklists
Added UserData attribute to SpanVariables
Alignment of numeric winform grid columns.

SiteSync:

Fixed bug in SiteSync with importing data into classes with derived assocs or attributes.

5.0.0.4272 2009-06-12

Modlr:

DoubleClick on row in ModelErrors dialog selects TreeView or brings up ModelView editor
ModelErrors dialog now also shows errors from ViewModels.
NavigateToCode did not respect NationalCharacters
Fixed sorting of association ends in modlr-tree
non-navigable association ends are not visible in the modlr treeview

ViewModels:

Rearranged the readonly/enabled strategy for viewmodels. Now an additional column for ReadOnly/Enabled is added to the handle that can be used with databinding by the controls.
Editboxes for numeric fields will only accept numeric characters now (Winforms)
Support in WPF viewmodels to set the whole usercontrol to readonly.
Label is shown for IsStatic in ViewModel
ViewModelEditor shows better winform preview, also make use of Preview flag so that static labels show in designtime.
Prepare for Preview rendering so that static texts will show in design time
Added simple styling h1,h2,h3
ViewModels did not correctly decide needed size of display grid. Orphaned nestings created controls but with not data.
ViewModel event vm.HandleApplyStyle is called even if the column control creation is overriden
ViewModels without columns were completely ignored in runtime
Viewmodel colums for readonly values (such as derived attributes, freeze-attributes etc) are now made readonly in the UI
Fixed bug in SpanEditor; if you switched ViewModel while viewing details for a column associated to Nesting -> the Association was dropped. (WPF clears selected value from comboBoxes if the selected value is not in selection list (it does this instantaneous so order of tear down is important ))
Checkboxes are now rendered with a height of 20px
Fixed spacer-panels to ensure minimum-width in grid
Update ViewModelForm selected on click and keynav

Ocl:

new OCL operation: object.isNew - returns true if the object is not yet saved to the db (does not fire subscription events when the object is saved)

Winforms:

Autoforms and EcoSpaceDebugger now close if you press ESC

SiteSync:

Fixed bug in SyncHandler for empty object-references

Core:

Fixed null-reference exception when converting a string-attribute with the value "<null>" to datablock xml.
IObject null-references can now return a proper IEcoServiceProvider
TypeSupport.GetMethod now also detects inherited private methods.

Persistence:

Added a check for childmapped classes with parentmapped subclasses
Fixed null-reference bug when using custom mapping with a model that contains transient classes.
Improved parsing of DiscriminatorValue tagged value.
Supported formats are now:
"<value>" (if there is only one discriminator)
"<discriminatorname>=<value>,<discriminatorname>=<value>"
"Name=<discriminatorname>,Value=<value>"

DroopyEyes:

Fixed issue in DirtyObjectCatcher with resetting LastDirtyObjectCount when undoing, and resubscribing to the dirtylist after firing the idle-event.

CodeGen:

Fixes for handling renames in Prism more gentle
New files are now added to the correct folder in the Prism project manager

Project templates:

Added an exceptionhandler to the winform program template

5.0.0.4234 2009-06-03

Winforms:

Changed caption of the EcoSpaceDebugger button in ContextAgent from "Show Eco debugger" to "Debugger" so that it is not truncated.
Autoforms now add a scrollbar to the lisst of attributes/singlelinks if they can't fit on the screen.

Core:

Fixed null-reference exception when an implicit link-object is deleted

ViewModels:

Rightjust on numbers in ViewModelForms

IDE Integration:

Eco and Modlr package now aborts immediately if VS is started with /Setup

Modlr:

Fixed 773: DbReverse doesn't rename the package unless it is called "EcoPackage*"

5.0.0.4226 2009-06-02

Modlr:

When files are removed from the EcoMdl-file, they are now deleted from disk too.
Prototype run can now be peformed against SQLServer database
Modlr-tree now has attributes, methods and associationEnds in alphabetic order
Classes with no package (broken classes) will now only have one property (the package-property) in the ObjectInspector in the designsurface
Improved errorhandling when loading broken models
AssociationEnd has their own category in Wrappers and also a prefix to make them stay-together and be easy to find
Shortcut keys based on F1-12 supported
ctrl-f12 brings up viewmodel editor
Dividers in submenus fixed
Remember and select last ViewModel when opening dialog
PlacedClasses have their own Color, but if this Color is not set, or if the color is the same as Color assigned by diagram or if the color is the default color, then the Class defaultColor is used (if set)
AutoClass diagram had several problems with drawing; this is now tuned up a bit.
When in edit mode in diagram and pressing TAB, the edit is applied and ended.
Prototype form has ability to use xml persistence
New Get/SetSetting class ModlrSettings; first thing stored here is the xml-persistence file for Runningmodel.
Fixed problem when trying to store empty documentation for a documentable item
Added a tagged valud ("Eco.ModeledName") in the codegenerator when the modelled name differs from the codegenerated name

CodeGen:

Improved performance for codegeneration for models with multiple packages
Added codegeneration of partial derive-methods
Added PreDelete as a partial method. All PreDelete method declarations must change to partial methods instead of private methods
Generated partial method PreDelete now takes a ref-parameter "canDelete" that can prevent the deletion.
Fixed Codegeneration for nullable types that are not in the typedictionary
Fixed 769: CodeGen was not able to locate the ecomdl-file correctly in solutions where the projects were located in subfolders.
Workarounds for Prism codemodel issues.
Fixed regexp to match id-attributes for Prism code
INotifyPropertyChanged is now correctly codegenerated for Prism versions of 3.0.18+

Core:

Added parameter to BuildBlockForUpdate to export attributes regardless of SaveAction.
Fixed MaxLengthSupportFunctions support for TableLayoutGrid
Added support for overloaded methods in the mode, ocl and winform autoforms.
Fixed index out of bounds in MatchSignature when signatures were of different lengths
Added EAL-operation: "setToNull". Sets a nullable attribute to null
Fixed 766: Eco LINQ expressions failed when using the constants "true" or "false"
"Identity collects" ("xxx->Collect(myVar|myVar)") is now handled in OclPS (they are generated as a consequence of the LINQ-implementation in Prism)
Added ElementHandle.AddNewObject event to catch when a bindingnavigator for example calls AddNew on the IBindingList of a handle

Persistence:

Implemented support for TOP in OclPS-queries that uses MaxAnswers
Fixed 731: Added validation for invalid columnnames in discriminator implementations.
Fixed 770: Evolve did not correctly quote names when inserting new instances in a superclass table
Avoid adding duplicate columns when loading nonembedded links. causes exceptions in Firebird2.5
Added default int64 mapper for Firebird (bigint)
Updated firebird assembly to use Firebird connection 2.5.0.0
Added DoubleAsNumeric and DateTimeAsSmallDateTime to DefaultAttributeMappers
Fixed expected type for new Firebird Int64AsBigInt mapper

Winforms:

doubleclick in a DataGridView between two column headers doesn't invoke autoforms but instead autosizes the column as expected.
AutoForms get stringrep + : Class.RuntimeName in header
AutoForm shows all compliant ViewModels in a TabControl (including the original AutoForm)
autoform checkbox in winforms now handles editing nullable booleans nicer.
Improved key board navigation in EcoSpace debugger

ContextAgent:

Fixed problem with ContextAgent where some drags would select the wrong node.
ContextAgent doesn't reset the y-coordinate for new components until it reaches the end of the form.

WPF:

EcoObjectDataProvider new class: Use this class to wrap a Eco ElementHandle and make it into a WPF datasource for DataContext or Binding Source property

ViewModels:

GetElement for ViewModel
WinFormsViewModel control now can give its DesiredSize
Added ViewModelUserControl.FocusFirst to force the focus of the upper leftmost control of the viewmodel
Size of AutoForms that contain ViewModels adapt
Issue with ViewModel Combo resolved
Bug that nullrowmode in ViewModels looked at the wrong column.
Drag of columns on to preview
Drag from preview to new empty position
Click on ViewModel errors focus correct column
nullable atrtibutes in ViewModel handled
OnColumnUIOverride and OnColumnUIApplyStyle added for ViewModel controls WPF and WinForm
Mistake in viewModel.FinalizeUI crashed VS
Bug in ViewModel WPF, ColCount was used instead of ColWidth
Actions are not rendered as grid columns in ViewModelUI
new property ViewModel.TabOrder
new event ViewModel.OnColumnUIOverride
new event ViewModel.OnColumnUIApplyStyle
ColWidth RowHeight added to viewmodels
ExpressionForReadOnly and ExpressionForVisible in error checking
Drag drop to reorder ViewModelColumns
IsStatic ExpressionForReadOnly ExpressionForVisible added in RT-model for viewmodels
Fixed bugs in WPF and winform viewmodel rendering
Error check for spans now also find colliding grids
Span dialog has more attributes, IsStatic, Expression for Visible and ReadOnly etc
Span Dialog selects columns from click in preview
New method to IViewUICreator interface FinalizeUI
PresentationString In ViewModelColumn can now be empty
Currency, actions, right aligned ints and doubles, labels on grids for ViewModelWPF
ViewModelWPF binding now works and master detail
Bug In SpansWindow used class.Name instead of Runtime name; gave "no context" when settings expressions
Bug In spansWindow made spans loose selected class and other single links when closing form (intermittent)
SpanWindow now has a working VariableType-Picker-combo
Attributes and Associations are alpha-sorted in Span-submenus
If Model was invalid SpanWindow error checking failed and crashed app
ViewModel editor is now non modal, so that you can browse model while having ViewModelEditor open
ViewModelEditor and Documtr editor now closes when closing model, thus avoiding VS-crash that came from running AutoSubscription on non active EcoSpace
SpanModel got new associations ValidatesColumns and EnablesColumns
SpanModel got new defaultvalues
ViewModelColumns with -1 in X or Y are hidden from display
ViewModelColumn for Winform was wrong for MultiLineText?
WPF Preview for ViewModels had align issues
Cursor handle is now correct so that Action handling is done on the correct (selected) object in ViewModel winform forms
Added DefaultDataSourceUpdateMode for winform viewmodels
Datetime picker how uses the short-mode.
All bindings are now created with "FormattingEnabled" = true
ViewModelWinForms renamed to ViewModelImplementorWinForms
ViewModelWPF renamed to ViewModelImplementorWPF
ViewModelColumn has a SpawnedArtifacts; add your created controls here
ViewModelControlWPF has a DesignModeFlag
ViewModelForm can show gridlines
More on Span Variables; they are now used in expressions and error check
SpanVariable added
SpanDefError moved to own SpanDefErrorHelper
SpanDefError on conflicting positions
Splitter in Span win works
Span window Gui for Variables
New event on ViewModel.OnViewModelActionPopulate; use to populate Actions on ViewModelUsers
Currency handled on Actions
Combobox fix for "formatting enabled"
Winforms Viewmodel now supports to render all components readonly
Bug in Spans display caused exceptions when open while new modlr file was created.
ContextMenus for ViewModels now also include inherited attributes
when the ecomdl-file is saved, new spans-files are automatically set to "EmbeddedResource" and files that have been removed will be renamed to ".deleted".
Viewmodels now use the id rather than the name of the class to locate the IClass (since the model-name isn't always the same as the runtime name)
Added a virtual method CreateViewModelWinForm in the winform usercontrol to control the concrete class of the component creator should be instantiated.
New Event on ViewModel allows for user implementation of Action: OnViewModelActionExecute
AutoForms Now fill the window
Made a lot virtual in WinForm ViewModel impl.
Fixed issues with LayoutGrid and Resizing in winforms and wpf.
ViewModel actions are now executed.
Splitters for ViewModelWin. Preview is aligned to bottom.
Prototyping from inside ECO and Gaffr now use the ViewModels from ModelLayer; so prototyping will show any ViewModelAutoForms.

IDE Integration:

Fixed 761: Added question to skip upgrade question next time the project is opened.
Fixed Eco4->Eco5 upgrading of persistencemapperprovider.

5.0.0.4096 2009-05-10

IDE templates:

Added item templates for C# for EcoSpace and PersistenceMapperProvider
Fixed 759: Code didn't compile when the model name contained a "."

Persistence:

newid() is now a valid DefaultDbValue for SqlServer GUID attributes.
Added Int64AsBigInt as the default int64 mapper for firebird
DbReverse now handles columns with Decimal type better. Scale and Precision is preserved to the model and the correct mapper will be used for the attribute.
Added new interface INumericAttributeMapping to specify scale/precision for columns.
Updated existing mappers for System.Decimal to handle scale/Precision
Fixed 763: Added validation that non-saved objects can't be used as parameters for OclPs queries
Fixed stackoverflow in an extender-method for IOclPsService
PersistenceMapperXml will now always write an empty file when the mapper is activated (if the file doesn't already exist) to make sure the location is valid and writeable)
PersistenceMapperXml/Memory now handles optimistic locking on timestamp
Fixed 760, retrieving enum values that are null always returned the first enum-value in the set
Improved error message for missing discriminators
Added component designer to PersistenceMapperNexusDB

Modlr:

Added Modlr-properties for Attribute.Scale/Precision when the attribute is a decimal-attribute.
Fixed bug with removing referenced packages.
Adding new associations will now locate a valid package to put it in, Either the package of one of the ends, or the "MostLikelyIntendedPackage".
If a class or state without rootedpoints had keyboardfocus and showed the focus rectangle, and the widget was moved, the focus rectangle stayed in the old location. Fixed.
Intermittent Null access issue in Modlr fixed
Selection of via point crashed VS - fixed.
ToolTip display in modlr is changed; now content set just before display
selecting an association line will now always select the association in the ObjectInspector. To select an associationend, click the label at the end.
Nested AssociationEnds and Associations in the object inspector don't publish nested properties for associations and other ends.
Fixed problem when prototyping a model with derived associations
Added more validation of the model before starting the designtime prototype-form
#745 Nested states in documentation was rendered wrong. Fixed.
Ordered links now handle the case when the ordernumber in the database is null (will be loaded as ordernumber -1)
Optimisticlocking can now be specified on the EcoSpace with a taggedvalue for those classes that don't specify it themselves and don't havea package that specifies it either.
Gaffr, saved modlr format even if it opened ecomdlr format.
Fixed problem with optimistic locking of singlelinks if the primary key was a guid.

ViewModels:

First naive implementation where autoforms find ViewModels named "Class_AutoForm"
Added ViewModels to core; Eco.winforms turned 3.5 in the process and uses LinqExtensions

CodeGen:

Fixed 762: models that contains reserved C# words would cause exceptions when code was generated the second time since it tried to rename the elements when it was not needed.
moved Extenders for association ends refering classes in referenced package. They are now generated in the package-file instead of the file with the "other end"
Fixed trimming of autogen warnings in generated code for VB and Prism

Core:

Fixed problem with initializing tuple-parts with null-values
Fixed 764: MapperTypeNames can now contain assemblynames to make them resolveable even if they are in an assembly that is not referenced.
Removed initialization error for non-abstract classes without statemachines that have triggers. Even though it is probably not intended, it is not illegal.
replaced "throw e" with "throw" to avoid loosing the callstack after exceptions.
Added support for tuples in Custom written ocl-operations
Added static method that creates a tupleimpl from an object
Added a guard to avoid recursive tuples (tuples that has a property with the same type as itself)
TypeSystem.GetClassifierByType now handles collections and tuple-types too
Added autosubscriptions for custom ocl operations
Fixed nullreference exception when a guard had a null-body
ObjectIds don't use Generic classes (except in silverlight) because they can't be streamed easily
The value of a VariableHandle is now initialized to a default value if the initial value is empty.
IdToString-event on DatablockConverter changed to IdToNode instead anda new event "NodeToIdKey" was added so that backwards conversion can beplugged as well.
Fixed null-reference bug when exiting from one state into another region.

Installer:

Added WPF toolkit to the installer
Added source for Eco.Persistence to the installer

ASP:

Fixed problem with derived boolean attributes and ASP autoforms

WPF:

Added CurrencyManagerHandleWPF that handles the same thing for WPF CollectionView as CurrencyManagerHandle for WindowsForms does for BindingContext

Winforms:

winform Autoforms now uses checkboxes for nullable booleans again

Demos:

Added new demo for ASP providers

5.0.0.3999 2009-04-10

Modlr:

Added new form that lists all model-errors (under contextmenu "extras")
New associations now get valid/unique names for both ends.
The (e) indicator is not shown for derived associations
#746 Association to self in modlr handled;
Fixed focus-issue for object inspector when inplace-editor was active
Changed caption of EcoSpaceDebugger to "Open Model Debugger"
#747: ecodiag files now write out the "effectivename" of association ends to make it easier to see what an association is.

CodeGen:

the versionnumber of the .net framework is no longer a part of the generated code
#734: Improved codegen error message when a method has an invalid parameter signature
Codegen got confused when multiple ecomdl files were open at the same time. Corrected.
Added codegeneration of statemachine constants

Core:

Fetchhandler now ignores derived members (prevents a crash if an attribute has been persistent in an XML-file and then made derived)
IClass.HasTriggers now also checks superclasses
Fixed null-reference issues with creating a tuple via the VariableFactory
ReflectionReader: Properties are only recognized as associationends if they are marked with "AssociationEnd" in their UmlElement attribute (scrapped backwards compatibility with pre eco2 sourcecode)
Added better error messages for attributes that have a domain class as the type
Added support for string.StartsWith and string.Contains in LINQ
Fixed support for extension-methods (sqlLike and sqlLikeCaseInsensitive)
Added CurrencyManagerHandle.CurrentElement<T>(control)
lightweightnodes also use ArrayList instead of List<T> to be SOAP serializable
replaced generic members in datablock with non-generic to support SOAP serialization
improved error message when a concrete class has triggers, but no statemachine
Fixed memory-evaluation for SqlLike and SqlLikeCaseInsensitive again. now it handles both wildcards and multiline strings.
Fixed issue with comparing values in ocl where one value is a null-value. Null will be equal to null and smaller than non-null values
LINQ: fixed problem with comparing a single link with an explicit object (such as "this")
LINQ: Fixed problem when accessing fields of objects.

Web:

Improved error message when an EcoSpaceManager can't resolve the type-name
#719: Improved errormessage when web UI component doesn't define any key fields

Project wizard

Added System.Core to the list of references for the ecospace project template

Persistence

#748: Fixed missing quoting of alias name when passing a single object in an oclps variable (including self). caused Firebird to not recognize the alias since it is a little more case sensitive than many other databases.
removed PersistenceMapperFile (was only used for backwards compatibility for reading ECO3 xml file format).
Made PersistenceMapperXml subclassable and added virtual methods for storing and loading xml-files
DatablockConverter now has an event to allow custom rendering of objectids (IdToString)
Fixed update-order when a non-constrained singlelink to a new object with an autoinc id in the same equivalence-group was saved.

Autoforms:

Removed the behaviour that autoforms are always "TopMost" since they often obscure the debugger. Also, they tend to obscure each other in ways that are not desirable.

5.0.0.3954 2009-03-31

Modlr

Added Exception dialog that shows callstack and asks user to email the info to capableobjects.
Added try catch with a call to the ExceptionDialog in most user entry points places
Added menu on contextmenu for class named "Placed on:" ; submenu shows the list of diagrams that contains the class - and clicking a diagram displays the diagram.
Derived associations now uses red lines instead of black.
DerivationExprssions now create the typesystem lazy, handles associations, displays entries for obsolete (renamed or removed) members, uses CommaTextSupport to correctly format the final string.
Class-resolution for the context and expectedtype for the OCL editor is now done using the Runtime-name of the class (important if non-ascii characters are mapped to ascii-characters)
If user chose ecopkg in Gaffr file open -> exception. Fixed.
Orphan state machine could give null access exception when building menu texts
Orphan state machines gave null access exception on file ReadDiagram
When recreating state diagrams for imported ecopkg state machines we forgot to associate the diagram with the attribute
Added "Back to index" hypertext to xsl files for published Documentation
Added hyperlink for ending type of associations to jump to type
Diagram documentation files are prefix with ClassDiagram_ and StateDiagram_ to not collide with Class files with same name
the DerivedExpressions property is now treated as a collection of all ancestor-classes-derived-attributes and this collection can be edited with an OCLEditor that expects the correct type.
Shift-arrowkeys moves all selected placed widgets, before we only moved focused widget.
Modlr tree now has two root nodes Packages and Diagrams; easier to work with in large models.
Search-eco-tree was broken. Fixed. Also changed search from StartsWith to Contains to make finding stuff easier.
Sneaky bug found and fixed. Bug had each viapoint 6 units off on first render, squared lines especially suffered from this since they lost their 90 degrees angels everytime a viapoint was off base and this triggered a new SquareLine pass.
EcoModeller documentation that is kept in a tagged value after import is now applied to html documentation as long as the html documentation for this item otherwise would be empty.
EcoModelerImport now set OneLiner documentation for Class, Attribute and Association to CodeComment for Class, Attribute and both associationends.
Import of EcoModeler via points for associations.
ShortCircuit association had a problem that could lead to null reference and crash.
Delete from diagram of placedclass with associactions to self would give index out of range message on first try.
AbstractDiagram has new derived attribute PresentationName that is used in DiagramCombobox. DiagramCombobox shows AbstractDiagrams.allinstances->orderby(PresentationName) (so that alphabetical order is kept in combo).
#622 Generate code is now on the context menu and has shortcut key ctrl-G
#726 All tool buttons on the diagram surface now applies current edit first.
#725 Focus classes and states after DD-operation
When using 1 to 1 associations the text "(e)" will be appended to the Cardinality string if the association end is embedded. This will help developers using sql persistance mappers to see the error of a double embed early.
Added wrappers for all tagextensions so they are exposed directly in the object inspector.
Added full assemblyname for System.Drawing.Color in EcoDatatypes.xml
entries in EcoDatatypes.xml with unknown .net types will be ignored

Persistence:

Fixed bug in how equivalencegroups are merged when the static update order is determined. When two equivalence groups are merged, all classes that uses the one to be removed must change to the new group.
Added error when the number of columns for a singlelink doesn't match the number of columns in the key
Fixed problem with inherited autoinc keys that are Attributemapped
name of PrimaryKeyColumns are inherited

DbReverse:

string columns mapped with the generic attribute mapper will now get the length set correctly.
Connectionstrings were added in the inverted order
Removed the EcoSpace debugger that was shown at the end of the Reverse-engineering process
The properties of the connectionstring is now shown in a listview
(un)checking a schema-node in the list of tables will (un)check all tables in the schema
Subpackages are also configured for full O/R mapping configuration in the ObjectInspector

Ocl:

Fixed type validation for nullable types vs null in ocl
Fixed problem with sqlLike and sqlLikeCaseInsensitive when evaluated in memory with strings that contains linefeeds

Core:

Multilinks now throw proper exceptions when trying to add/set/insert a null-value
Fixed 730: Added validation error for concrete classes with triggers but no statemachine.
Added support for adding additional statemachines in subclasses
Fixed a validation bug when a state had two transition where one had a trigger but and the other (transitionless) had a guard. This is valid now.
Added a private debug-property for multilinks so it is easier to see the contents

Winforms Autoforms:

Autoform widget for singlelinks doesn't precalculate CanDelete anymore. This can take along time for objects with big relations.

Eco Linq

Added support for Nullable<T>.HasValue and Nullable<T>.Value. Comparison with null works (myClass.Attr == null)

CodeGen:

derived singleassociations don't get a property setter anymore (unless they are reverse-derived)

Templates:

Added using/uses statements for System.Linq to all templates that already had Eco.Linq

Doc:

More documentation on IEcoTypeSystem in EcoServices.pdf

5.0.0.3888 2009-03-12

Modlr:

All associations in the diagram-part of the Modlr-model wereaccidentally ordered (due to an old and fixed bug from the EcoModelerimport). They are now unordered so that diagram xml-files uses theautomatic ordering based on id/name.
Fixed 708: .ecopkg, .ecodiag, .ecotag and .modlrdoc-files can nolonger be renamed in the SolutionExplorer, and if they are opened, theyare opened with a readonly editor.
Referenced packages will not be selected as the "most likely intended package" when creating new classes.
Bug made "start edit on type" fail in diagram for letters part of shortcut key. Fixed.
Entry and Exit action is displayed in StateDiagram if any of them are set.
Changed Focus-fontWeight from UltraBlack to Bold.
TaggedValue for default color of Class added to enable persistent coloring of classes in design time and runtime.
If a class is placed on a diagram and its DefaultColortaggedvalue is set, this color will be applied. You can override thedefault color by changing the color of the placed class. DefaultColoris used in the AutoClass diagram if set.
Doubleclick on diagram now shows diagram rather than starting edit

Model-documentation:

Publish documentation to html format

Persistence:

Fixed bad error message when an unknown discriminator is found in the database.
Fixed problem when discriminators are space-padded (stored in a char(x)-column rather than varchar(x))
Improved error message when a database operation fails, the original error message is now displayed before the SQL and the parameters.
Removed invalid validation rule for column and table names
Added a default mapper for System.Drawing.Color
DiscriminatorValueCollection.FindByValue crashed when asked for a name that was not defined in the collection. now it returns null instead (was a old consequence of changing from Hashtable to Dictionary).
Added warning when evolve tries to delete instances that are missing expected discriminator values
Fixed problem with invalid sql queries when abstract classes doesn't have a discriminatorvalue

EcoSpaceDebugger:

Log-panel delays updating the log-textbox until idle and collects all log-entries in a string builder to improve performance.
EcoSpaceDebugger now indicates when an ecospace is transient (and the UpdateDatabase menu option is not visible)

LINQ:

Fixed support for operations on datatypes in the LINQ-translation to OCL (such as "ToUpper").
EqoQuery with a constant null reference like "where x.package==null" failed. fixed.

IDE:

Fixed bug when looking for referenced assemblies in the IDE and a project has a null-path

Project templates:

Fixed invalid assemblynames in project templates (MyProject.Asp.Asp.dll)

Core:

StateMachineTransport now uses the RuntimeName of trigger methods so triggers can use mapped characters in the name
OclTriggerQuery ("trigger?") will now return false when the object is missing (it is not possible to call a trigger on a null object)

Demos:

Fixed assembly reference in silverlight demo

ReverseEngineering of databases:

Packages that have names that collide with classes after reverse-engineering a database will be suffixed with "DB".
Prototyping a reversengineered database is disabled by default.
Fixed problem with badly initialized firebird persistencemapper when reverse-engineering databases

5.0.0.3854 2009-03-07

Persistence:

Primary keys of string-type are now sent as literal strings instead of as parameters, increases performance dramatically in SqlServer.
Added function in SqlDatabaseConfig to create a quoted string literal even if it starts and ends with a quote character (ForcedMakeStringLiteral)
Fixed issue with quoting table names when adding new columns during evolve
Firebird mapper now registers its attribute mappers in the global registry for mappers
Changed default mapper for StringAsText to Eco.Persistence.Firebird.StringAsBlob
Firebird calculated columns are now reversed as DbAssigned attributes so they are not written to the database on create or update
Fixed Dequoting of names that are quoted with the same character in the beginning and the end
Mapper for SqlServer spatial types (included as source only)

Modlr:

Added support for mapping names in the model to strict ascii or map national characters to simiar ascii characters.
Selection of rooted points should update property inspector; bug fixed.
CodeComment added to Class, Attribute and AssociationEnd. CodeGen extended to wride CodeComment as a correctly formatted codeComment. Wrappers updated to allow for code comment input.
CodeComments shows up in Diagram as ToolTips

EcoSpaceDebugger

Added a call to EnsureBindingLists when changing the current class for the AllInstances grid to avoid the non-linear operation to sync two large lists
DirtyObjects debugger panel will now only queue one idle event at a time. When many objects were modified at the same time, the panel would process one event for each object.

Core:

Added possibility to register any class as a valid attribute type.
Fixed bug with SQL logging. it was not possible to turn it of by setting the LogSQL-property to false under certain conditions
Eco.Tree, new design time component that enables definition of navigational trees aka Spans
Added better error message when a derived multilink returns null

ASP:

Updated ECO web providers with ECO5 codegeneration
ActionExecutor.CreateObject will not catch and silence exceptions when creating or saving new objects anymore. Errors will surface to the web autoform instead and be displayed to the user.

Installer:

Added source in the installer for winforms, wpf and web assemblies
Added missing files to QuickStart chapter 7 sample, and added some auto generated demo data to the example

CodeGen:

Codegen shouldnt generate elements for non-navigable derived associationends
Codegen never tries to modify return parameter for constructors
Constructors that change to normal methods will now be called "Method"
Codegen never renames constructors (since it renames the class).
Fixed codegeneration of constructors
Fixed "navigate to code" for constructors
Constructors will now always be called "Constructor"
Generated code for ModelLayer updated with new partial methods

5.0.0.3811 2009-02-24

WPF:

Added IBindingList to EcoObservableCollection
Added EcoObservableCollection - a helper class for showing lists in WPF.
EcoBinding did not invalidate on changes of datacontext of owning control

Core:

When tuple-types are created, their collection type is also registered in the dictionary with all types.
Improved errormessage when failing to evaluate the value for a constraint
Fixed initialValue "<NOW>" for nullable datetime attributes
Added support to store internal ids when converting a datablock to Xml
Added IPersistenceService.EnsureObject
Added IObject.EnsureFetched
IObject.Deleted will now first ensure that the object is fetches

Installer:

Included source for BDP, DBX, Mimer, BlackfishSql and Sybase PersistenceMappers
Included two new WPF demos
Added missing source for Eco.xxx.Strings.cs

Modlr:

Refactored ecomdl read and load so that most of is in ModelEditor
Implemented ecomdl save,saveas and load of ecomdl files in Modlr
Found and fixed issues when ecomdl files changed on disk -> VS crashed because of missed exception
Found and fixed issues when ecomdl files are reloaded after change on disk is discovered; diagrams where doubled due to diagram loader missed the "Id" attribute
Before a selection of a class or state could make the model dirty; this was due to persisting the renedered height and widht. This is now fixed.
Modlr did not correctly handle switch between models, nor did it handle multiple models very well. This is now fixed and keeping two or more models on seperate tabs in eco is fully supported.
Delete of association with association class, left association class connection hanging in modlr diagram and this would bring down VS if clicked. Fixed
[707] VS crash when setting superclass in object inspector on placedclass. Fixed
Squared lines had a problem in the logic for reducing small z-lines in free air. Fixed.
Context menu in diagram now works in VSIntegration
Changes to how shortcut keys are handled; now delete and ctrl+delete works
Changes to how lines keep their focus state; now the focus is kept when viapoints are deleted
Changes to how viapoint focus spills over as line focus. Now the line is always focused when via point in line has key focus
Diagrams are now focused correctly in the editor window when they are clicked in the modlr-treeview.

LINQ:

Accessing IEnumerable.GetEnumerator on a EcoQuery result gave eternal loop; fixed.
LINQ queries with "&" will be treated just like "&&" in Ocl2Ps (->AND)

Templates:

Updated project templates to include Eco.LinqExtender
Added uses/using-clause to Eco.Linq and Eco.Services where appropriate

Persistence:

Fixed incorrect concatenation of alias name for columns when using a aliasprefix (caused invalid syntax for indirect relations with quoted column names: "LinkTBL_[colname]")
Attributes/singlelinks can now specify certain columns as readonly (by prefixing the column namne with a "*"). This means that the column will not be included in updates/inserts (it might be included because of other attributes/singlelinks). The purpose of this is if some column is used for more than one member.
Added taggedvalue for PrimaryKeyMapper
Fixed problem with parameter-names for attributes with quoted column names
Added a mechanism to register persistencemapper types to allow generic instantiation of mappers based on provider-names
Fixed problem when the same parameter was referenced multiple times in an OclPs query.
Improved error message when an unknown discriminator value is found in the db
Singlelinks used quoted names when locating fields with FieldByName. fixed
Improved errormessage when a fetch-operation fails to load data for a member
Added public methods PersistenceMapperDb.GetDatabaseConnection and ReturnDatabaseConnection
Added tagged values for DiscriminatorImpl and DiscriminatorValue.
Drop-column script for SQLServer now uses table/column name when naming the local variables so multiple dropcolumn scripts can be executed in the same transaction

DbReverse:

Added try/catch when testing the connectionstring to avoid brining down VS for invalid connectionstrings.
TestConnection is now enabled when the connectionstring is empty
Added wait-cursor when testing connectionstring and reverse-engineering databases.

CodeGen

Changed name of the partial method that is called in the constructor from "Created" to "ObjectCreated" to reduce the risk of name conflicts with user defined attributes
Added progressbar and wait-cursor when generating code.

IDE Integration

Fixed null-reference when trying to locate the source code declaration for a method

Winforms:

Autoforms will indicate if an object is deleted

5.0.0.3711 2009-02-05

Modlr:

Added error message when trying to save an orphan state diagram
Added context menu item for deleting statemachines
Delete of state attribute left the modellayer in an illegal state with a hanging statemachine. Fixed.
Newly created state did not get focus; fixed.
Added new property Package.ORMappingConfigMode to control how much of the ORMapping related config properties are visible in the ObjectInspector.
AssociationEnd.Ordering is now a derived attribute with a taggedvalue as the backing. Fixes bug with ordering not being respected.
"Delete" always removes from the diagram and "CTRL-Delete" always deletes from the model.
Registered a fileicon for ecomdl-files
When an association end is selected in the modlr-tree, the correct end is now selected in the objectinspector
Added correct string-representation for the header in the objectinspector for PlacedClass, PlacedState, AssociatinEndConnection, Diagram and Transition
Package.EffectiveNameSpace now strips out invalid characters from the name
The dropdown for attribute types is now prepopulated with the types from EcoDatatypes.xml
Dragging a transition or an associationEnd will not delete and recreate the underlying objects, but instead just change the connection point. For associations, all other visualizations of the same association will be updated if possible or deleted if the new target class is not available on the diagram

CodeGen:

Implemented removing of source for deleted classes/packages from the project, and renaming them ".deleted"
Fixed VB codegen bugs for classes with superclasses

Templates:

Removed EcoSpaceProvider property from the MVC base controller template.
Updated template for new VB model to look like the generated code
Fixed markup bugs in asmx-file templates

Core:

Introduced tagged value definitions and default values for the new ORMapping related Tagged values: Eco.PrimaryKey, Eco.Discriminator and Eco.DbSignature
Added better error messages for invalid results from a derived multilink.
Fixed problem with accessing struct fields in OCL

IdeIntegration:

Changed how ContextAgent caches the serialized ToolboxItems to speed up changing of selected components in a designer.
PersistenceMapperXml and PersistenceMapperMemory are now registered under the Eco Persistence component category again

Project wizard:

Fixed problem with adding assembly references in Prism Project wizard
Added flyover hints in solution wizard
Model, ecospace, pmp and UI modules are now automatically opened in the IDE after creating a new project.

Persistence/Reverse-engineering databases:

Fixed trimming of singlelink signatures
Fixed index-names for quoted tables/columns
Fixed handling of discriminators for reverse-engineered databases.
Fixed problem with (non-existing) system tables when evolving a reverse-engineered database
Fixed matching of Primarykeycolumns with Attribute/Singlelink
Added validation of filename in PersistenceMapperXml (throw an exception if the filename is empty at startup)
Added forcing of the column-names for "innerlinks" when reversing databases
Added method in SqlDatabaseConfig to dequote database names "[columnname]" -> "columnname"
Reverse-engineering databases now set the table/column name by default on all classes/attributes.
Dataset.FieldByName is now always called with the unquoted columnname
The list of found tables is now sorted alphabetically when reverseengineering a Database
Added hints in the DbReverse-form
PrimaryKeys are now stored in their quoted form.

Installer:

Installer now installs silverlight assemblies in GAC

ASP Autoform:

TextBoxBinding now keeps track of the original value and ignores to apply textboxes that hasn't been changed.

5.0.0.3660 2009-01-28

Prism:

fixed missing ecospace attribute in Prism template

ASP

Added SessionStateMode.HasUnsavedState for the EcoSpaceStrategyHandler to allow ecospaces with transient objects to be automatically stored in the session.

Modlr:

Added support for specifying a default superclass for all modeled classes that don't inherit from anywhere else.
Methods defined with an OCL body now works in the model prototyper

Core:

Fixed problem with "duplicate key in dictionary" for certain statemachine operations

Bold model import

Added support for Date and Time datatypes when converting a Bold model to ECO

5.0.0.3551 - 2009-01-27

Core:

Members that are recursively derived (depend on themselves recursively) will now throw an exception
When an exception is thrown by the derivation of a member, a detailed exception will be thrown that shows which member caused the problem.
Added DefaultEcoSpace.PreAllocateGuidID helper method to replace the internal (temporary id) of an object with a guid id before it is saved the first time.
Tagged values on packages were not imported into the runtime model
Package can now specify a default optimistic locking mode for all classes that have no superclass and specify their lockingmode as "<Default>".
Fixed bug in ChangeHandler (fixed in ECO4 already) that caused the list of old versions that were sent to the sync-handler to grow limitless over time.
Fixed initialization of initial values for obejcts that were detected as deleted in the database.
Minor optimization in MemberCachePolicy.PreChange
Changed runtime assemblies to use .net2.0 as the target framework instead of 3.5
Moved all extender-methods to Eco.LinqExtender.dll
Added events on FrontsidePolicy to override the code that actually creates the frontside objects
Added event on EcoSpaceManager to override how the ecospace is created

Ide Integration

Eco4 projects are now automatically upgraded to .net3.5 when upgraded to ECO5, but it is possible to downgrade them manually afterwards.
If the underlaying Ado connection component like MySql.Data of a specific type is not in the GAC, VS will have problems with the corresponding PersitanceMapper. This would bring down VS. The issue is solved by not allowing for the PersitanceMapper to be created if the connection type is not found.
Fixed crash in VS when Smart-tags are invoked for OclPsHandle
The Linq extender methods for the EcoSpace class are now extenders of IEcoServicePrivider instead so they can be used in the model-assembly too
Adjusted the templates to reduce the number of warnings from MSStyleCop.

Persistence:

PersistenceMapperXml doesn't initialize unknown attributes with default values unless they are persistent now.

Modlr:

Fixed deleting of tagged values
TaggedValue editor now lists the tagged values in alphabetical order
Fixed problem with deleting constraints in Modlr
New constraints now get unique names
Fixed issues with renaming of packages.
Fixed 700: Fixed null-reference exception when editing the effect of a triggerless transition
Added support for marking methods in the model as "new"

Bld import

Fixed problem when importing Bold tagged values that contained a "=" sign
Fixed duplicate instance of tagged value "Derived" when importing bld-files
Fixed importing of Bold tagged values with newlines

Demos

Added new version of ECO4 LazyFetch demo

Silverlight

Added Silverlight versions of Eco.Handles.dll and Eco.Interfaces.dll, and a very simple silverlight demo

LINQ

Included initial support for executing LINQ-queries directly in the database.

SiteSync

Added source for SiteSync to the installer. Sitesync is a tool that allows you to synchronize objects in one direction between separate databases

5.0.0.3596 - 2009-01-19

Modlr:

When changing diagram type in diagram combo, the toolbox items was not updated.
Fixed stackoverflow when using ECO with ReSharper (was a recursive implementation of IPersist.GetClassId in ModlrEditorPane)
Creating relations, generalizations and transistions on modlr diagrams never really kept the points chosen by the user. Instead it came up with a rooted point placement of its own.
Added taggedvalue class for Length to specify the default length as a constant rather than an literal in the DefaultTaggedValues.
Added a defaultlength attribute to Package so that new attributes can get a default Length
Fixed 672: Added importing of DefaultLength from EcoModeler

Persistence:

removed MSAccess from mapper configurators for PersistenceMapperSqlServer

CodeGen:

Fixed 695: Compiler warning about unreachable code in generated code when subclasses has "HasUserCode" for any of its properties

Core:

Refactorings in OCL enging to allow LINQ-parser to build and evaluate OCL parse-trees.

5.0.0.3585 - 2009-01-13

CodeGen:

Fixed problem with codegenerating models that originally had duplicate IDs on methods.
Fixed problem with updating old code when there was an association with both ends to the same class, and it had an explicit association class
Fixed automatic removal of old statemachines when upgrading eco4 code
Added a mechanism to mark items as completed to avoid checking the same class/method/file again when updating the code.
Fixed a problem when the type of a parameter doesn't match because of namespace vs no namespace.
Fixed 680: new methods are now correctly generated the first time you press "GenerateCode".
Deleted methods are now marked as obsolete in the code.
Fixed 683: Generic methods (MyMethod<T>) in the model are now detected and ignored with a warning message

EcoModeler Import

Elements with duplicate ids now retain their ID with a suffix instead of getting a new id (for tracking purposes), and later fix in codegen-phase.
Fixed 694: AllowNULL was not correctly imported from EcoModeler
Added support for typeconstraints for methods, importing of docs/oneliners
Added warning for orphan state diagrams

Core:

Fixed problem with ocl.substring when the parameters refer to positions outside of the string.
Fixed bug when datetime or time-literals were specified without seconds
Fixed threading issue when resolving types.
Added RegisterEcoService<T> to the IEcoServiceProvider interface
Added automatic ocl-operations for fields on the types in the model (most notably the parts of structs)
Fixed problem with CurrenctyManagerHandle in EcoSpaceDebugger when the ocl-expression is attached to the current object in the allInstances-grid

Documentr:

Added the licensed PinEdit and Spellchecking.

ContextAgent:

Fixed default tab for ContextAgent
Fixed 689: Resolving types from Eco.Handles.Design in ContextAgent didn't work correctly (sometimes...)
Added a registry key for the ContextAgent so that its location isn't lost all the time.

5.0.0.3560 - 2009-01-08

Wizard:

Persistence assemblies (Eco.Persistence.SqlServer for example) are now added with explicit version number.

Modlr:

Shift selecting in inplace edit, stopped edit and moved the class. Fixed.
Squaring line could fail with accvio. Fixed
Transient classes now have a small icon
Abstract classes are now rendered with their name in italics
Fixed 692: Added AssociationClass property to associations in the object inspector
Fixed 671: Configuration for how to "embed" a association was not correctly imported from EcoModeler.
Added NavigateToCode for methods
Fixed 679: Added Visibility property for methods
Tooltips on diagram buttons
Keyboard move of Viapoints and DiagramPlaced
Enabled for keyboardnav for BaseViaPoint's
Drop attribute and method when the inplace edit is left blank
Ctrl-tab now switches tabs in VS
Boxing undo-checkpoint bug. Gave effect that you had to press undo twice after adding attribute in diagram.
Word documentation dropped in favour of html documentation
Captures all exceptions from RunningModel window to avoid bringing down VS
ViaPoints that after a move ends up inside their nearest placed widget are removed to reduce line clutter
PlacedWidget neighbours now also gets a MoveRootedPointsWithLinesThruPlaced check
Changed primary model format from .modlr to .ecomdl
Added import of .modlr-files in Modlr

CodeGen:

Fixed codegen of methods with body. EcoModeler import now moves the method-bodies from the tagged value to the attribute.
Fixed 693: Incorrect code generated for "outerlinks" in associations with link-classes.
Removed generated property-setter for "innerlinks"
Fixed 687: CodeGeneration for AssociationEnds with HasUserCode
Fixed 690: Partial method stubs for getters are now generated even for ReverseDerived attributes with "HasUserCode = true"
Fixed 685: Namespace of classes didn't change correctly when the package is renamed or the class changes package.
Fixed 678: Codegeneration of abstract methods

Core:

Fixed 670: When linking objects, if either object is deleted already, an exception will be thrown.
Fixed 676: Removed EcoDataSource.Update
Added servicemethod IObjectFactoryService.DeleteObjects to safely delete a list of objects.
Objectlists that are created as a copy of another list didn't correctly subscribe to deletion of objects
Capture the ecospace debugger "GetChanges" click exception that comes if the pmapper does not support sync

Documentation:

More persistence service documentation + completed versioning service.
Started multi-user concurrency
Updated Eco5Readme with new instructions for converting EcoModeler models and running the EcoMacros.vb macro

VS integration:

Added New .ecomdl item
Removed new Modlr-file

5.0.0.3513 - 2008-12-26

Persistence:

Fixed problem with expansion/truncation of index-names when generating/evolving databases

Modlr:

html documentation in more consolidated files; work in progress
Added check when setting double-attributes in ModelLayer, If the change is very small, the change is ignored, to avoid dirtyfying the ModelLayer model with rounding errors or file storage precision
Added alphabetic sorting of the nodes/attributes in the xml-file to make them more stable. Added support for tagged value "ModelLayer.DefaultValue" to reduce the size of the files
Added default values for some attributes to reduce the size of the diag-files
EcoModeler Import - Added import of of IsAbstract and IsSealed for methods
EcoModeler Import - Fixed import of static methods from EcoModeler

Installer:

Updated GacInstaller to handle wildcards and version number when uninstalling

Docs:

Added the new HowToGuides.pds to the installer

5.0.0.3495 - 2008-12-18

Core:

Fixed 630: State attributes for non active regions are now cleared when the state is changed.
StateAttributes do not automatically get "AllowNULL = false" anymore.
Fixed 544: Added generic versions of RegisterEcoService/GetEcoService
Added overloads for IEcoServiceProvider to register/get services with a key so that multiple services can be registered for the same type
Fixed 400: Added Extension methods for OclService and OclPsService to take an IEcoObject instead of IElement.

Persistence:

Fixed 667: Autoinc keys didn't work when the rootclass was childmapped.
Fixed 623: Added validation of PrimaryKey specification. If a class specifies a primary key column that is not used by any attribute or link, a detailed error will be thrown.
Validation of ORMapping will only happen if there is no previous error to avoid secondary failures

Modlr:

Improved error messages when a new modlr-file was created outside of the project and then added to the project.
Fixed problem with codegeneration when a method had a return-parameter with no type.
Removed trailing "Package" from package names when importing ecopkg-files
Fixed appearance of autocreated associations/transitions that start and end in the same class/state
Fixed StackOverflow when trying to find owning Package in invalid models with cycles
Modlr: Added menuitem "Show state diagram" to class, lazy-create state-diagrams if there is a state machine.
Removed "Show state diagram" for attributes.
Fixed 639: removed the "Name and Type" property for attributes in the ObjectInspector (name and type can be modified separately)
Fixed some problems with upgrading from eco4 to eco5 format of the generated code.
Fixed 637: caption of the GenerateCode button is now "Generate Code"
Fixed 624: The diagram is re-focused after codegen.
Fixed import of nested regions from EcoModeler.
Fixed length of error message when there are many duplicate IDs
Fixed problem when modlr-file was not contained in a project (created standalone for example)

IDE integration

Fixed 631: VS was not visible in the ALT-TAB list when the ECO project wizard dialog was shown
the csproj-files in the template now has the eco version number expanded from a resource
Updated Prism templates for ecospace and winform to look like the C# templates.
Included wizard files for new Modlr model

5.0.0.3454 - 2008-12-10

Core:

Fixed 653: Added IPersistenceService.DiscardChanges that removes modified data from the cache, Added an EcoGlobalAction "DiscardChanges"
Fixed 642: Fixed problem with childmapping the rootclass in a versioned database.
Added property category (Eco.Persistence) to PersistenceMapper.ConnectionString
It is now possible to subclass an eco-class (even an abstract) in code and instantiate the new subclass.

CodeGen:

Fixed 645: Namespace for default package and class was wrong in the templates, it should be the name of the package, not the name of the project.
CodeGen: Fixed problem with changing parameter types when the type was not fully qualified
Added doc-comments for partial methods

Modlr:

Added two gravity-based layout engines (experimental)
Fixes to EcoMdl-handler for referenced packages
Added new html-based documentation tool (experimental)

EcoModeler import:

Fixed importing of initialValues for attributes
Fixes to EcoModeler import for referenced packages

IDE integration:

Removed EcoModeler from the ProjectWizard
Removed mmcseco editor and EcoModelerPlugin from ECO ide integration

Installer:

Added EcoScripts.vb to the installer
Uninstaller doesn't force a reboot anymore

5.0.0.3423 - 2008-12-05

Installer:

Installer no longer removes HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\VisualStudio\9.0\Menus on uninstall
Removed EcoModeler from installer
fixed issue with GacInstall/uninstall
Installer: Added detection of if .net 3.5sp1 is missing

Core

Fixed 646: Removed traces of bdp from ContextAgent config file

5.0.0.3408 - 2008-12-02

Installer

Completely new installer
Allows side by side installation with Eco4
Fixed 337: Samples are now installed in commondocs

Modlr:

fixed 638: Support C# syntax when editing method signatures in Modlr
Keyboard navigation for diagram
"Start to write - inplace edit mode will follow"
Focus correct widget after add
Focus correct widget after ESC
Jumps between classes and scrolls with key navigation

CodeGen:

Fixed issues with renaming of parameters (they are just replaced now, not renamed.
Added support for ParameterDirectionKind
Codegen detects if the IDE is in debug-mode.

Templates:

ECO MVC controller template now has a public writable EcoSpaceType property instead of an abstract method. The EcoSpaceType is initialized in the superclass, but can be replaced before the ecospace is created to suit test-scenarios better

5.0.0.3381 - 2008-11-29

Core:

Fixed problem with license check when the typesystem was accessed before the ecospace was created
Removed model validation warnings for embedded association ends
Fixed validation of quoted sql-names in the model

IDE integration

Added "new ECO MVC controller" item

Modlr:

Improved highligting of selected associations
Improved behaviour of zoom in diagram
Setting an attribute name to "/name" now automatically makes the attribute derived
Added property for Method.Body in the ObjectInspector
Fixed context and returntype for ocl-editor for Method.Body and Transition.Trigger

CodeGen:

When renaming of a code element fails, the error message is now a bit more friendly
Dots (".") in element names are now replaced with underscore in the codegenerator (except for datatypes)
Trigger methods and methods with body are no longer generated in the user-part of the code

5.0.0.3369:

Templates + Project Wizard:

Changed the protected field in the PMP that reference the ecospacetype to a class constructor instead.
Item template for new ECO MVC controller
minor typo in Oxygene ASP autoform template
Always uncheck MVC if it is disabled
Fixed issue in MVC template so the ecospace is returned to the pool later.

Modlr:

Improved rendering/editing of the association ends in the ModlrTreeview
Nicer error message if a module fails to load after wizard has generated all files
Improved errormessage when a modlr-file fails to load
Fixed problem with stray parameter-objects when updating the signature of a method
AutoScroll in diagram rewritten with a DispatchTimer
Focus in tree; Ctrl E in diagram selects the class in the tree
FocusInTree extended to handle attributes, methods and AssociationEnds
Multiple move rectangle now also works from bottom to top
Moving a placed so that its own rooted lines cross it, the rooted points are moved to fix it.
Added a try/catch in EndCurrentInplaceEdit to avoid VS crashes
It took two f2 pushes to get into edit mode.
Attribute shows type and Method shows signature
Entering edit on Attributes and methods only selects the name

DbReverse:

NameUniquer doesn't set the old name in the TV if the name was empty
The table dbo.sysdiagrams is now considered a system table
The treeview with schemas and tables are now expanded an extra level to show the tables.
Fixed bugs with restoring the old ids when re-reversing a database
Fixed DbReverse-issue when an identifier starts or ends with "_"

Core:

Fixed bug when adding new publishers with lower index than the current minIndex. Fixed another bug when removing a publisher from a list.
RenderedTupleDescriptor for Nestings assigns the Derive and ReverseDerive events from the root RenderedTupleDescriptor. This what not done before making it impossible to use derived columns in nestings.
improved statemachine initialization errors

CodeGen:

Improved the stable order in which code is generated
Added codegen of method stubs

ModelLayer:

Fixed fixed EcoModelLayerSpace.GetOwner to handle empty singlelinks

5.0.0.3318

Documentation:

Updated QuickStart documentation (up to chapter 6) to use Modlr

CodeGen:

Derived attributes, DbAssigned attributes and state attributes will no longer get a setter
Fixed exceptions when codegenerating and the old selection in the code is no longer valid
Added support for implicit tagged values in EcoDataTypes.xml (autoinc, text, blob uses that)
Partial method XXXChanged now takes three parameters, oldValue, newValue and finalValue.
Fixed problem with nullable attributes and HasUserCode.
Default path for generated code is the folder where the modlr-file is (was project path)
Attributes with a type that is not a ValueType (like string) now get the tagged value "AllowNULL" if they allow null (valuetype attributes are generated as nullable types instead)

Modlr:

Shortcutkeys on diagrams and tree
Default multiplicity for new associations is now 0..1 -- 0..* (was 1 -- 1..*)
Added Constraints property for classes and placedclasses.
Added new descriptors for Region and StateDiagram to set the StateAttribute with a combo
Serious issues with Association class connections. They could not be touched at all. The problem was the Loopreduction being called when tracking the linkconnectionpoint Fixed.
Improved name of state diagrams in dropdown combo
Multiple changes to handle parallel subregions in states. Now logic adds additional subregion attributes when needed.
Logic also handles rename of state attributes (main and subregions).
Fixed bug in Rename that used newname as oldname before.
Cleaned up labels for transitions
Added name-property for regions in statediagrams
Fixed Effect-property for transitions
Add final and start state to region via contextmenu
Substates in regions got their transistions placed in the wrong coordinate system; fixed #597
Added Package-property for associations in the OI

UmlRt/ModelLayer:

Deprecated the tagged value "Eco.StateAttribute", instead the stateattribute is handled by an association in ModelLayer, and set directly by the reflectionreader when reading the model.
Added StateMachine.Id so statemachinediagrams can reference the statemachine correctly
Added default values for StateMachineTransport to get a smaller xml-representation

EcoModeler import

Fixed problem in EcoModeler import when diagram name was empty
Added name to the imported Statemachine from EcoModeler

IdeIntegration:

Fixed invalid cast when solution contains non-source projects such as setup projects
Removed dependencies to Eco.Persistence.Xml from the ConsolePServer and WinServicePServer template projects
Added System.Core as a referenced assembly in the C# project templates

Core:

Fixed initialization of DerivedElement.ServiceProvider
Linkobjects will now have their constructor called when they are created as a part of a link-operation.
Fixed 557: nullable values didn't correctly conform to non-nullable values.

Persistence:

Retrieving the PersistenceMapper in PMClient is now done outside the try/catch that guards the connect-operation.
Compile Blackfish and DBX mappers against the Prism binaries instead of the RadStudio2007 binaries

WPF:

SourceOcl is Renamed Expression in EcoBinding
EcoBinding updated; PathOcl is not needed anymore

Changelog for 5.0.0.3256

Project wizard:

Eco Oxygene project wizard is now located under the Oxygene node in the new project dialog (or Delphi Prism)
updated winservice templates to include ".rem" when registering the service (to match the PMPClient)

EcoModeler:

Fixed bug in naming of the initial package in EcoModeler based projects

Core:

Let EcoListSHimBase implement IList, for backwards compatibility on old generated code. This fixes a problem with invalid cast exceptions for derived associations
Replace QulifiedPublisher with PublisherList (space savings on subscription to members).
Replaced String.Compare with EcoSupport.CaseInsensitiveEqual to avoid requirement for .net3.5 SP1
IPersistenceService.EnsureRange takes an IObjectList again for improved performance (need to call InternalGet to get the objects without ensuring them).

Modlr:

Support for referenced packages (ecopkg-files)
Added codegen for extenders for association ends in referenced packages
Package import is now wrapped in transactions and loose ends detected
Fixed 594: CodeGen - Fully qualified name used when specifying inheritance from classes in another package.
Fixed support for extender-methods in Oxygene
Fixed 581: diagram size and scrollbar on first show: fixed
Fixed 580: fast expanding diagram: fixed
Fixed 587: Delete diagram
Fixed 585: remove rather than delete from diagram

Change log for 5.0.0.3233:

DbReverse:

renamed SqlServer reflector to SqlServer2005 since it doesn't work for SqlServer 2000. trimmed the query used to retrieve index-information from sqlserver

Core:

Added extender method IList.AddRange for backwards compatibility for SqlDatabaseConfig.ReservedWords
Fixed 589: it was not possible to collect over list of tuples in OCL.
Fixed 543: ElementHandle now implements ISupportInitialize to avoid processing property values during InitializeComponents.

Persistence:

Added reserved words for Firebird

Project wizard:

updated eco project templates to .net 3.5

IDE integration:

Added automatic detection of .net2 projects so they are automatically upgraded to .net3.5 since this is required by the eco assemblies.
Also added a context menu for the aboutbox that currently contains code to restore the eco components in the toolbox

Changes in 5.0.0.3217

Modlr:

Added a panel in the Modlr pane with a hint how to open new models, visible only when no .modlr-file is open
Added a button to start the EcoSpaceDebugger directly from the Prototype launcher.
Toolbuttons on the autoclass diagram as well; mantis 0000570
Right click menu did not show in diagram until a drag or some operation was done. Fixed.
Importing EcoModeler failed failed becuase of missing tagged values. Fixed.
Removed Ionic.Utils.zip.dll from the installer

DbReverse:

DbReverse is now only registered for packages
Added support to retain IDs of modelelements when reimporting a database-schema
Added a better progress-indication
Added storing an MRU-list for connectionstrings, prepopulate the connectionstirng combo with the last connectionstring used for the package.

Ocl:

Fixed bug in ocl-operation "Existing". It now returns true for an object until it is deleted (instead of the exact opposite). Added testcase.

Project Wizard:

Fixed output name for C# IIS PServer projects
Oxygene templates for IIS PServer
Oxygene template for WinService PServer
Fixed style-tag in C# template for ASP autoform.
Fixed DefaultNameSpace in C# console PServer project template
Project wizard: Licenses.licx is now only added to the EcoSpace project
ConsolePServer templates for Oxygene.
Oxygene WinformPServer templates
Oxygene ASP templates, first cut

Docs:

Reapplied my changes from last checkin (was lost in Peters checkin)
Added some documentation for TypeService methods, and described how to create custom OCL operations.
Added an overview of how OCL expressions are constructed.

Core:

IElement and IEcoList now have a ServiceProvider property.
Add IObjectInstace.IsNullInstace.
Loosen typing of most services from IObjectList to IEnumerable.
Add IEcoObject as superinterface to IObjectProvider, and replace all internal uses.
Replaced ArrayList with List, Hashtable with Dictionary, StringCollection with IList/List
Changed Queue to Queue and Stack to Stack
ObjectIdList now inherits from List instead of CollectionBase
Start making "convience services", such as the IPErsistenceService overloads that take a single object extension methods rather than methods on the service, mainly to make shims narrower.
Fixed bug in IPersistenceService.EnsureRelatedObjects: Locators.Count was compared with null instead of 0

CodeGeneration

Fixed 577: Potentially invalid code in Oxygene codegen for nullable attributes. now it uses an explicit syntax for Oxygene too.
Added datatypes for Oxygene in EcoDatatypes.xml
Added datatypes for VB
fixed 578, invalid prefix in Oxygene codegen for the Eco_LoopbackIndex constants in association ends
Fixed 568: circular references in definition of EcoLoopbackIndices when a class both inherits and associations another class.

ChangeLog for 5.0.0.3142

Modlr:

Merged Attribute.Persistent/Derived/DerivedSettable into one property
Merged Method.IsAbstract/IsConstructor/IsOverride/IsSealed/IsStatic/IsVirtual into one property
Fixed problem when drawing an association from a class to itself without defining any via-points
Rearranged and renamed the assemblies that make up Modlr

Documentation:

Replaced the old document (pdf) on services with a new one.
Completed OCL operations

DbReverse:

Added check for duplicate ForeignKeys
Singlelinks are now always marked as IsConstrained
Attribute.AllowNull now reflects the setting in the db.

Core:

Added tagged value for IsConstrained (for singlelinks)
Optimization of CanDelete, the list of checked objects is now a Dictionary instead of an arraylist for faster lookups.
Fixed bugs with accessing parts of a tuple in OCL
Tighten typing of ElementCollectionContentImpl et al. Implement IEnumerable on IObjectCollection.
Loosen parameters to ECO services and IObjectList to take IObjectProvider rather than IObject.
Tighten a number of return types and internal variables from IObject to IObjectInstance.

Persistence:

All attribute mappings now handle null the same as DBNull in ColumnToValue (since IField returns null rather than DBNull in Eco5)
ForeignKeysDefinitions now clean their names the same way AliasDefinitions
DefaultORMappingBuilder now handles the taggedValue Eco.IsConstrained
OclPS: AliasReferences now clean the names of the tables before generating the alias-name.
PersistenceMapperXml now writes data to a temp-file to avoid problems if the app crashes while writing the file.

CodeGen:

CodeGen now forces the explicit order that the members are added.
Added regions to generated code to collaps groups of methods nicely
Added codegen support for "int?" for nullable types in C#
Don't emit the AllowNull TaggedValue, it is in the datatype of the attribute...
Codegen now supports nullable types for all valuetypes, not only primitive types.

Installer:

Fixed 560: renamed NDataStore to Blackfish SQL in the installer
removed bdp, vcl, bds-integration, The MatsSoft db-wrapper and Eco.ModelLayer.Design/Debug from the installer

ModelLayer:

Added ModelElement.GetTaggedValueBool for easier access to boolean TVs.

EcoSpaceDebugger:

EcoSpaceDebugger now clears the columns of the handles more thouroughly when changing the OCL-expression in the OCL-debugger
Improved Sync-debugger-panel. replaced the listbox with a listview to get the changes in nice columns
Some cleanup in the Class/Ocl debugger and Sync-debugger
Buttons in autoforms are now smaller so they don't obscure the labels.

MVC:

Updated MVC template for new ASP.NET MVC beta

Project wizard/templates:

Added missing package-include magic for Oxygene project templates
Filename for package-file in an EcoModeler project is now Package again to match the codegen of EcoModeler.
Added a link in ProjectManager to ASP.NET MVC site.
Fixed Oxygene templates for EcoSpace and PMP. They wouldn't display correctly in the component designer because of a missing "self."

IDE integration

Added try/catch-statement in Eco4 detection since VS throws exceptions when reading the name of some assembly references.

Changes in 5.0.0.3069:

Modlr:

Add: Simple diagram Print in Gaffr and Eco5
Fix: Reassign of inhertance, and setting superclass did not update diagram
Change: Moved designer tools to the designsurface instead of the VS toolbar
Change: Reworked the properties in the object inspector for the elements in the designer
Add: Added Combobox to choose active diagram
Change: Improvements to how Undo/Redo works in the designer
Change: Search updated to only find attributes and named relations when explicitly searching for them
Add: "Re-think this side" helps with positioning many link points on one side
Fix: Squaring logic ran all the time even on lines already squared. Made things slow.
Fix: Removed calls to ExpandTaggedValues to avoid unnecessary TVs
Add: Added Attribute.SetterVisibility
Add: Added support for ConstructorVisibility in ModelLayer + codegen
Add: ColorOnNew property on AbstractDiagram, also in wrappers, and usage when adding state or class
Add: Added option for creating new Trigger to list.
Change: Improvements to copy/paste behaviour
Add: Added categories to all properties in Modlr. Made some properties readonly and some properties with comboboxes as "exclusive"
Add: Added a generic catch-clause when executing commands in modeler to avoid that VS crashes (with loss of models as a result).

Statediagrams:

Fix: Prevent transitions going to start-states or from end-states
Fix: Pseudo states does not have entry nor exit

Bld-format import:

Change: Changed how Changeability is imported (stored with the name of the value instead of the integer).
Change: Bld-import: Constraints are not imported if they are empty
Add: Added option to convert a bold-model to ECO format (renames known tagged values to ECO names).

Core:

Add: Let IObject implement IObjectProvider, and IElement implement IElementProvider.
Add: IEcoList can now return an IObjectList,
Add: Added new interface IObjectListProvider
Add: Added IObjectList.GetAsEcoList
Add: Added IExtentService.AllInstances
Add: Added IExtentService.AllLoadedInstances
Change: Moved PrototypeEcoSpace to Eco.Handles (from ModelLayerDesign) to make it easier to use
Change: Make TaggedValueDescriptions for Enum tagged values singletons rather than classes (allows adding virtuals).
Add: FrontsideMultilinkAdapter, FrontsideDerivedMultilinkAdapter and EcoObjectListAdapter now implements IBindingList
Add: DefaultLoopback now implements ICustomTypeDescriptor and INotifyPropertyChanged.
Add: TupleImpl now implements ICustomTypeDescriptor.
Add: Added .net event IElement.ValueChanged. Used to implement FeaturePropertyDescriptor.Add/RemoveValueChanged, and IBindingList.ListChanged.

CodeGen:

Fix: Fixed reversed loopbackindex for innerlinks in codegen
Change: Generated code no longer uses the ObjectListAdapter for multilinks. instead the frontsideadapter is cast directly to IEcoList
Fix: Fixed visibility/finality of generated properties
Change: Codegen now uses the NameSpace defined in the Package class, but only FQN names for classes/assocs if they belong to different namespaces.
Fix: Fixed visibility of package-classes
Change: CodeGen doesn't open files that were not opened before.
Fix: RenameHandler now uses RuntimeName instead of Name when comparing to old elements
Change: Added sorting of properties before codegen to ensure a stable order in the source.
Add: All domain classes now implement INotifyPropertyChanged
Fix: Fixed generation of partial methods for VB
Fix: Fixed ref-parameters in oxygene codegen
Change: CodeGen throws an exception if an attribute doesn't have a type.

WPF:

Add: Added WPFDequeuer
Add: Added ElementHandle.List: IList property for improved WPF support
Add: Added EcoBinding for databinding in WPF

DbReverse:

Add: Support for MsSql, MySql, Firebird and Oracle

ASP:

Add: Added DeriveValue and ReverseDeriveValue events to EcoDataSource.

Persistence:

Add: Added GenericAttributeMapper to the default set of mappers
Add: Added IDefaultReverseMapping to indicate that a mapper is the default for a certain database type
Change: Made EnumMapper.ValueType return null instead of throw an exception
Add: Added DecimalAsMoney and Int32AsInt mapper for SqlServer
Add: Added optimistic locking on nonembedded members (multilinks) for PersistenceMapperXml and PersistenceMapperMemory.
Add: Added DecimalAsSmallMoney, StringAsNVarChar, CharAsNChar, StringAsNChar, StringAsXml for SqlServer
Add: Added MySql mapper for unsignedInt16
Add: Added SqlDatabaseConfig.ForceQuoteName
Change: AliasDefinition now removes [, ] and . from the name (needed if the table name is in the form [schema].[tablename])
Add: Added support in DefaultORMappingBuilder for the following tagged values: Eco.PrimaryKey, Eco.Discriminator to handle reverseengineered databases.
Add: Added ConnectionString property to PersistenceMapperAdo2 (superclass for all database persistencemappers)
Add: Added property editor for PersistenceMapperSqlServer.ConnectionString
Change: refactored PersistenceMapperMySql to inherit from PersistenceMapperAdo2
Add: Added new default byte mapper for MySql
Change: MySql uses ` as qoutechar
Change: ExpandName doesn't substitute characters if there was no replacement
Change: Improved charactermapping for alias-names
Fix: Improved if-assigned checks for Oracle attribute mappers
Internally build PersistenceMapperFirebird with FirebirdClient to 2.1.0
Internally build PersistenceMapperMySql with MySqlClient to 5.2.3.0

EcoSpaceDebugger

Fix: SyncDebuggerPanel - Avoid getting the Sync-messages if the ecospace is not active

Documentation:

MVC:

Updated C# MVC-templates for MVC preview 5

Microvideos

Administrator — Fri, 03 Jul 2009 14:16:50 GMT

The feedback from earlier videos said they where too long. So this time we are going with very short videos that shows isolated tasks. The intended audience are new clients that know nothing or very little about ECO and how to use it, and/or established users that want to look up how a particular task is performed.

Feedback is welcome as always!

Microvideos

Add class ; using Modlr to add classes
Class inheritance ; set up class inheritance
Add attribute ; Add attributes to classes
Add Association ; Add associations between classes
Association classes ; Many to many associations can have explicit association classes with attributes
Generate code ; Update the code that is generated from the model
Create objects in runtime ; Create new objects of code (c# in the video but works the same in VB.NET and Delphi.NET)
Set attributes and associations in runtime ; Access and set attributes and associations in code
Naïve Databinding ; Shows how you can bind directly to the generated code (naive since you probably want to a layer between to render the information in, like in the next video: Handles)
Using the ReferenceHandle, ExpressionHandle and CursorHandle ; Use of Handles to manage currency and rendering
Using the context agent ; Shows the Context agent that accelerates your form building by giving you model based options

ViewModels (13 minutes); Short talk about why they exists, then a hands on definition, followed up by use in WinForms, WPF and ASP.NET

Planning more videos; I had these in mind:

Adding your own columns in an ExpressionHandle
Persists to xml
Saving data in runtime
Delete an object in runtime
Finding the touched objects in runtime
Using more primitive types in attributes
Add method
Creating a state machine
Prototyping in design time
Using Autoforms in runtime
Persist to a Sql server
Evolve the database schema after model changes
Searching the model
Using colors and sizes in diagrams
Using CodeComment
Documenting the model
Publish the documentation
Segmenting the model in packages
Importing a package
Using optimistic locking
Using the Undo-redo service
Creating Variables and constants that are eco aware
Query the domain layer with ocl
Query the database with ocl
Query the domain layer with linq
Query the database with linq
Using in memory transactions
Using eco with asp.net
Persisting an ecospace to session state
Using eco with WPF and EcoBinding
Using EcoTree to extract data
Accessing meta data in runtime
Reverse engineer an existing database
Parent or child map inheritance
Add a derived attribute
Add a derived association
Using the ecospace debugger
Synchronize multiple clients
Using eco with Silverlight

User paid for extensions

Administrator — Sat, 30 May 2009 10:59:57 GMT

If you have ideas on what you want the ECO framework to do and you have a business case that requires it NOW you should not just post the idea to the forum and hope for the best. What you should do is this:

Describe the feature to YOUR stakeholders
Ask us for an estimate for adding the feature to the framework - if we think it is a good idea we will provide an estimate. If we do not think it is a good idea we will tell you why.
If your stakeholders accept this price and understand that the resulting work will be part of the framework and not their own (no exclusivity) you order the extension from us.
We make it a priority to create the feature and deliver it (fixed price according to estimate) as a new ECO release
You, as the financee, get the first versions to verify that this is what you ordered and it matches your needs.

Voila a new feature has been added to the ECO framework for everyone to enjoy.

We call this strategy "User paid for extensions". Use it - it works.

/Hans Karlsen

Changelog for ECO4

Jonas Högström — Wed, 06 May 2009 23:45:59 GMT

Eco 4.0.0.4035 - Stable build 2009-05-06

Fixed 760, retrieving enum values that are null always returned the first enum-value in the set
PersistenceMapperXml now checks the validity of the path for the file when it is activated and will throw an exception if the path is invalid.
Fixed problem with derived boolean attributes in asp autoforms
Fixed invalid assembly names in project templates (MyProject.Asp.Asp.dll)
OclTriggerQuery ("trigger?") will now return false when the object is missing (it is not possible to call a trigger on a null object)
Fixed null-reference bug when a deleted object with derived attributes or associations is loaded into the ecospace
Added an event on EcoSpaceManager to allow custom creation of the EcoSpace
Added two events on DefaultFrontsidePolicy to allow custom creation of objects for DependencyInjection.

Eco 4.0.0.3583 - Stable build 2009-01-13

Fixed threading issues in EcoSupport.ResolveType
Objectlists that are created as a copy of another list didn't correctly subscribe to deletion of objects
ItemTemplates are now installed with version number in the filename to avoid problems with Eco5 installations
Added Eco.TypeSupport.IsNullable
fixed 557: Fixed typeconformance for nullable types.

Eco 4.0.0.3228 - Fieldtest build 2008-11-05:

[ Mantis 543 ] : ElementHandle now implements ISupportInitialize to avoid processing property values during InitializeComponents.
Delphi.Net codegen: Nullable types will not be explicitly cast in the attribute-setter anymore.

Eco 4.0.0.3137 - Fieldtest build 2008-10-22:

Core

Optimization for large cascading delete-operations
Fixed issue with subscriptions on trigger queries in OCL

ASP

Add DeriveValue and ReverseDeriveValue events to EcoDataSource.

Persistence

Added optimistic locking of multilinks in PersistenceMapperXml and PersistenceMapperMemory.

Eco 4.0.0.2789 - Fieldtest build 2008-08-27:

Persistence

[ Mantis 525 ] Ported performance fix when looking up fields in a query. Also helps when a query contains duplicate field names.

Eco 4.0.0.2779 - Fieldtest build 2008-08-20:

Core:

Added IStateService.IsInvalid(IProperty prop)
Added support compact representation of Int64-keys in ExternalIdService
[ Mantis 534 ] All registered services that inherits from EcoSpacePart are now (de)activated along with the ecospace.
IElement null-references are now typed, Fixed syntax for comparing with empty id-lists
Fixed bug in Undohandler when sending subscription messages

Winforms:

ListActionExtended now passes the static type when evaluating EnabledOcl and VisibleOcl to handle the case where the element of the handle is null.
ContextAgent now sets DataSourceUpdateMode to OnPropertyChanged for comboboxes

Persistence:

[ Mantis 532 ] OclPs expressions evaluated with PersistenceMapperXml and PersistenceMapperMemory failed to correctly determine the context of the self-variable when it was an object (and not an object list)
[ Mantis 519 ] Added a dedicated decimal mapper for FireBird. Restricts the precision to 18 places.

Ocl:

Subscriptions failed when a VariableHandle refers to an object, and the object changes.
[ Mantis 535 ] Ocl-operation "->notEmpty" returned the wrong value when the list was null (but the correct when it was just empty)

ASP:

Implemented EcoDataSourceDesigner.RefreshSchema to avoid NotImplemented exception in the designer

Eco 4.0.0.2733 - Fieldtest build 2008-07-14:

IDE:

Disabled the PostCompile hook in handle designer since it causes issues in VS when triggering a SetupProperties while the IDE is debugging (and the buffers are readonly). Need to delay the event until the IDE is no longer debugging
Removed trailing whilespace in webconfig templates

Winforms:

[ Mantis 516 ]: Column resize doesn't work for DataGridView if EcoDragSource is enabled

Droopyeyes:

Fixed error where no subscription notifications were sent after CancelAllSubscriptions was called and then new subscriptions were placed
Hooked into DirtyObject.Dispose in order to dispose of this component automatically. Also prevented new subscriptions being placed once disposed
Changed form reference to a WeakReference so that the form can be disposed of when no longer referenced, in turn this will now dispose of the DirtyObjectCatcher. In addition form events and Form.MdiParent events are unhooked when the form is closed and rehooked when it is shown, this prevents a strong reference from a forms MdiParent holding a reference to the DirtyObjectCatcher.
Fixed memory leaks in DirtyObjectCatcher

Core:

Free DerivedMemoryManager when deactivating EcoSpace.
Collect subscribers before growing list.
[ Mantis 513 ] Fix error in deactivation frontsidepolisy
[ Mantis 513 ] Detach all events on ExtentServiceImpl.DeActivate.
[ Mantis 512 ] Fixed errormessage when invalid rolename is given to "EnsureRelatedObjects"
Preconditions for methods are now exposed as IMethod.Precondition if they are defined as tagged values ("Eco.Precondition") on the method.

Persistence:

Fixed DateTimeFormat for FireBird

Debugger

DirtyObjectsDebuggerPanel now delays its updating of the dirtylist until idle so if many obejcts become dirty (or clean) the list isnt updated until the end...

Eco 4.0.0.2623 - Fieldtest build 2008-06-24:

Services:

Added generic GetEcoService<T> to EcoServiceHelper

Persistence

[ Mantis 501 , 504 ] Moved fetching of old singlelink values to occur before deleting objects to avoid problems with exactification.
Fixed a problem with Deleted objects not getting correctly refreshed after unload
[ Mantis 500 ] the list of the database updates performed by the client was never purged so long lived clients would send longer and longer lists of commits to be excluded.

Documentation

Fixed 371 , 401 , 418 , 482

Eco 4.0.0.2476 - Fieldtest build 2008-05-22:

Added an event on the DisplayQueue that signals that the queue goes from empty to non-empty.
Fixed bug in OclPs when external parameters had the value null.

Eco 4.0.0.2414 - Fieldtest build 2008-05-16:

IDE and templates:

Added button to aboutform: "Copy buildnumber to clipboard"
Improved comment in Winform template about setting the EcoSpace for both ReferenceHandles _AND_ VariableHandles
Activated ContextAgent in VS
Added support for web-forms in ContextAgent
Added support for ProjectClosing event in VS
Added button to About form: "Copy buildnumber to clipboard"
Fixed VS project templates for WinForm/Console PersistenceServers so they compile and register the server with the correct name (ServerName.rem).
Removed button from VS WinForm server and made it register on startup instead.

Handles:

RootHandleDesigner now informs the roothandle that the model might have changed after a compile-event in the IDE so that columns are correctly updated.
Added better error message when a variablehandle is not properly configured
Added workaround for .net bug in RootHandle property editor when the list of components is more than 5 components long. The last entry was not shown in the list.
RootHandleDesigner now informs the roothandle that the model might have changed after a compile-event in the IDE

Core:

Optimize creation of multilink adapters.
ExternalIdService now returns a null-token instead of throwing an exception for null-objects
Improved error message when an association refers to a class that is not in the known packages.

Persistence:

Fixed problem with storing nullable types that have locale-dependent string representations (such as Nullable<DateTime>) with the Xml-mapper
Fixed regression bug in OclPs when using "->size" in an expression, (introduced in build 4.0.0.2200)
Fixed problem with allocated queries not being correctly returned.
Fixed problem with allocated queries not being correctly returned.
Fixed problems with persisting nullable enums to databases.
Added support for parameters with null-values in OclPs-queries
Fixed problem with generating query-parameters for autoinc keys
Fixed bug in ChangePointCondition handler. Now the correct set of DiscriminatorImplementations are passed to the Query-reader to avoid exactification.

EcoModeler:

New build from ModelMakerTools with bugfix for sourcedoc generation and new docking-library

ASP:

EcoMembershipProvider now consistently uses DateTime.UtcNow

Eco 4.0.0.2262 2008-04-25:

Persistence:

[ Mantis 471 ] rev 2189 contained a bug that caused autoinc keys to fail to load their new data.

Core:

Added detection of the case when a class doesn't have an UmlElement attribute

ASP:

IsTrustedPartOfEco now uses only values from Assembly and not from AssemblyName to avoid problems when running in medium trust on a web server
EncryptedLicenseProvider.cs: First tries to locate the license in the assembly of the ecospace to avoid issues with medium trust.

Eco 4.0.0.2230 2008-04-22

ASP

ECO asp applications should now behave well even on servers restricted to medium trust
Fixed problem with databinding singlelinks with comboboxes in ASP (columns with "AsExternalId" were always readonly)
Fixed problem with setting a singlelink to null in ASP

Persistence

Fixed a problem when custom OR mapping refers to a column that is not listed in the schema section

Eco 4.0.0.2200 - EcoIV2008-04-18

Persistence:

[ Mantis 466 ]: Invalid sql generated when applying an operation like toUpper or length to an attribute of a related object in a query
Added possibility for autoinc-keymappers to generate specialized queries to retrieve the new autoinc value

RadStudio Wizard:

Fixed problem with duplicate web.config files in asp-project

Eco 4.0.0.2186 - EcoIV for RadStudio FT

RadStudio Wizard:

[ Mantis 034 , 035 ], Added support for more remote persistenceservers (console, IIS, Service)

AspProviders:

Fixed problem with Eco ASP MemberShip Provider (GetAllUsers) when there are no members in the database
Fixed inconsistencies between DateTime.Now and DateTime.UtcNow, the EcoSessionStateStoreProvider now always uses UTC time.

Core:

Fix bug in CalculateMemberModified. Remove unused code.

Persistence

Added overload to DatablockConverter.ConvertToDatablock to avoid setting the initialvalues of the objects

Eco 4.0.0.2167 - EcoIV for RadStudio FT

Persistence:

[ Mantis 456 ] "Exactifying" childmapped classes caused nullreference exceptions
Fixed issue with versioned objects in ocl-operation "modifiedSinceTimeStamp"

Handles

Added support for NullRowMode in nestings

Eco 4.0.0.2158 - EcoIV for RadStudio FT

Persistence

oclPsOperation "modifiedSinceTimeStamp" now supports versioned classes correctly

Eco 4.0.0.2151 - EcoIV for RadStudio FT

EcoModeler

Before code gen IDE Modified Buffers are checked.
Code gen replaces only files that are actually different.

Persistence:

[ Mantis 454 ]: Custom OR mapping with two classes in the same table with different singlelinks stored in the same column to two different classes with overlapping id-values would load incorrectly. Testcase added
Fixed order in which the timestamp and the cache is initialized in PersistenceMapperXml. Caused Null-reference exceptions when Update was called before the first Fetch-operation

Eco 4.0.0.2133 - EcoIV for RadStudio FT

RadStudio project wizard:

[ Mantis 206 ] Added possibility to configure the name of the default package in the BDS project wizard
ProjectNames generated by the RadStudio Projectwizard no longer contains "." since RadStudio looses track of project dependencies for such projects.
[ Mantis 213 ] Added navigator images to the BDS asp autoform templates

Ocl:

Added new OCL-operation: modifiedSinceTimeStamp

Persistence:

[ Mantis 450 ] Evolve with PersistenceMapperDbx caused "Column 'COLUMN_NAME' does not belong to table"
Fixed optimistic locking for inherited multilinks
Fixed bug in PMapperXml/Memory that would cause updates of old objects to be ignored
Added support for GUID ids in DatablockConverter
Added partial support for timestamps in PersistenceMapperXml

SourceCode

Added sourcecode for dbx, added source for designdll for dbx, bdp and sqlserver)

Demos

Fixed name of pas demos project group

Eco 4.0.0.2109 - EcoIV for RadStudio FT

Installer:

Installer is now an exe-file and not an msi-file. This fixes several issues with the installer under Vista.

VCL:

[ Mantis 315 ]: InitialValues for attributes are applied to new rows in Eco VCL handles
TVariableHandle now performs a call to "First" when the initial value has been set.

Core:

[ Mantis 399 ] Singlelinks with SaveAction=Freeze can now be "cascadedeleted" by their owning objects.
Add missing begin/end for method calls. caused exceptions for autosubscribed isquery-methods

EcoSpace/PMP-Designer:

[ Mantis 347 ] Removed the custom label from EcoSpace designer and PersistenceMapperDesigner to allow copy/paste of components

Handles

Added method ElementHandle.GetRenderedValue to extract the rendered values in a row/column from a handle
[ Mantis 030 ] AutoCreate columns for handles (both winform, VCL and ASP) ignored blob-attributes in designtime, so they could not be databound in the designer.

Persistence

[ Mantis 440 ] XmlMapper assigned new values to autoinc attributes each time the object was updated.
Autoinc attributes are now allocated in chronological order on the new objects with XML-mapper
Improved error message when an autoinc-attribute is used with an AttributeKeyMapper (it will not be assigned when the primary key must get its value).

WrapWizard

[ Mantis 029 ] DelayedFetch was not correctly handled in the wrap-wizard
[ Mantis 028 ] The wrapwizard now uses the package name instead of the project name when generating the filename for the ORMapping file

Doc:

Updates to ASP-documentation, chapter 7 for VS

Eco 4.0.0.2025 - EcoIV for RadStudio FT

Documentation:

[ Mantis 156 ] API documentation is now registered in BDS online help

Persistence:

ConnectionPool will now verify that all queries have been returned, or else throw an exception

BDS CodeGen:

Fixed problem with parameterless constructor being removed from classes with no superclass when code was updated.

Other:

[ Mantis 442 ] CTRL-M in ocleditor toggles from default font (Tahoma) to monospaced font (Courier New)

Winforms:

[ Mantis 429 ] Default Autoforms are now "TopMost", so they are not hidden behind the main window if the EcoSpaceDebugger is launched as a modal dialog.
Fixed editing Expression when multiple ExpressionHandles are selected on a win/web-form
[ Mantis 061 ] EventDerivedColumn.TypeName editor is too small

Core:

[ Mantis 438 ] Undoblocks didn't keep the value for "ContainsChanges" when they were moved between undolist/redolist
[ Mantis 186 ] Improved error message when no initial transition is valid

Droopyeyes:

Added AllowPartiallyTrustedCallers to Droopyeyes assemblies
DirtyObjectCatcher: Changed to use IUndoBlock.Subscribe instead of subscribing to DirtyListService

Eco 4.0.0.1963 - EcoIV for VS

Persistence:

Improved the error message when the Server and the client has different

VS IDE:

Fixed the URI for IIS remoting persistence servers to end with ".rem"
Added contents to the Readme for IIS PersistenceServer

EcoModeler:

When code is generated in EcoModeler, the files that are not open in

Winforms:

Opening an autoform from the multilink tabs in the winform autoform

Documentation:

Added VS Quickstart chapter 7 to the installer

Eco 4.0.0.1942 - Eco for VS RC2

VCL:

[ Mantis 389 ] TReferenceHandle.SetElement will automatically call

Winform:

Autoform state-tab now shows information if an object has an undefined
Winform Autoform state-tab now shows information if an object has an

EcoModeler - prototyper:

Added handling of DefaultDbValue for attributes

Documentation

Install VS/Chap6 PDF

IDE:

Added a "Check for updates" button on the about box.

ASP:

Added ExpectedType when editing the PsExpression in EcoDataSource
[ Mantis 419 ] CreateDefaultColumns appears multiple times in the
[ Mantis 431 ] AsExternalId column is now readonly.
[ Mantis 410 ] Web Autoform filters didn't handle classes with methods

Core:

[ Mantis 423 ] CollectionType.ObjectType caused a null-reference
Fixed bug in StateMachine.IsInState when the attribute value is null
State attributes will now automatically get "AllowNull" set to false

VS templates:

Winform PServer button for registering the server is now disabled
[ Mantis 427 ] Text change: Web Service => IIS remoting
[ Mantis 426 ] Name change: Eco solution => ECO Solution

Persistence:

[ Mantis 414 ]: Generate evolve-warning for missing DefaultDbValues for
Added evolve-error if a stateattribute has AllowNull

Installer:

Unregistration of helpfiles is now done before they are deleted from

Eco 4.0.0.1896 - Eco for VS RC2

Core:

[ Mantis 390 ] Added detection of loops with triggerless transitions.

Winform:

[ Mantis 391 ] Avoid recreating the TriggerControlsRefresher when
[ Mantis 387.1 ] Added support for BindingSource components in
[ Mantis 387.2 ] IBindingList.AllowRemove now returns true if the

EcoSpace Designer:

AutoHookup and ShowTaskHints are disabled by default.

VS IDE:

[ Mantis 412 ] Remove extra "EcoSpace" from wizard.
[ Mantis 407 ] Readme.html in IIS PersistenceService project got
[ Mantis 408 ] RemotePersistence WebService now have CopyLocal on all
Added expansion of the AssemblyVersion and PublicKeyTokenString
Added sample MachineKey section to the web.config templates.
Added missing variable "ServerName" for ConsolePServer projects
Added field that references the EcoSpaceType to PMP when compiled as

EcoModeler:

If an "unsupported" IDE version is defined in the registry - from
Diagram editor changes are committed before invoking the Prototyper.

Persistence:

[ Mantis 317 ] Added missing script pieces in evolve script to update

Eco 18.0.0.1872

BDS integration:

Fixed problem with autoform in BDS
Fixed incorrect nested comment in bds webconfig

General designtime:

Refactored all PersistenceMapper components so they no

VS integration:

more changes to the server templates

Persistence:

Keeping track of allocated exec-queries separate from the
CreateDatabaseSupport now uses the registered string mapper when writing the names of the tables to the db
DbxMetaData now skips the system tables more explicitly
Fixed problem with Dbx/Interbase and string parameters
Bdp, Dbx and Blackfish assemblies are now installed by default in VS too

Help/Documentation

Help registration is now done one namespace at a time to avoid filelocking issued
Added shortcut to launch ECO API help from start menu.

Eco 4.0.0.1840

VS Integration:

[ Mantis 353 ] Added explicit disposing of the global ecospace at the end of the winform application.
More template changes. All servers now compile, though the IIS one is untested, and probably doesn't find the EcoSpaceType.
the Windows Service version of remote persistence in the wizard now works.
Put eco item templets in subfolders for VS2008.
Removed the registration of SqlConnection on the eco tool palette
Collapse solution explorer after running wizard.

Core:

[ Mantis 383 ] Added Guid as a predefined type in UmlRt
[ Mantis 373 ] ocl-operations "if", "and" and "or" now handles boolean values that are null (and treats the value as "false").
[ Mantis 352 ] The cache did not handle attributes with array type (such as blob, byte[]) that had the value null.
Added Guid as a known type in EcoDatatypes.xml
Added support for " " as a valid initialvalue for datetime attributes
Improved errormessage when an ocl-operation is applied to values that it is not defined for

BDS integration:

Separated EcoModelLayerIntegration installtion into a separate method guarded with a try/except to see if that is enough to let it load in a pro-installation

EcoModeler:

Adding a new attribute sets AllowNull = False by default.

EcoModeler ocleditor:

[ Mantis 372 ] EcoModeler/OclEditor: Unknown types are not mapped to string any more but to a type called "Unknown Type".
[ Mantis 380 ] Loosen critera for launching OCL editor in EcoModeleler from IsRunnable it IsBrowsable.
Fixed issue in EM/OclEditor when a trigger parameter was of a type that could not be resolved. Will now ignore the parameter rather than throw an exception

EcoModeler prototyper:

[ Mantis 378 ] Fixed problem with multiple non-navigable association ends from the same class
Prototyper now supports InitialValue, Derived, AllowNull

Documentation:

API help should now be correctly installed in VS help system and work with F1
Added Quickstart chapter 5 for VS, iuncluding descriptions for MaxLength support, validation and Drag&Drop

Web:

[ Mantis 247 ] Added EcoDataSource.CreateDefaultColumns and a designer verb to make it available in designtime.

Eco 4.0.0.1795

Handles:

[ Mantis 145 ] Setting the element of a referenceHandle (VCL and Winforms) now checks that the element comes from the same ecospace as the handle is using
[ Mantis 045 ] Disable delete in ListActionHandler if the is no current element.
CurrencyManagerHandle.CurrentElement now returns null if the control in the parameter is not connected to a handle.
[ Mantis 357 ] Setting ElementHandle.AsExternalId actually set the value in ReadOnly instead... fixed.
[ Mantis 232 ] ListActionExtender can now be used with handles that are not listhandles. as long as the operation is not directly list-related such as "delete", "executeAction", "showautoform".

Core:

[ Mantis 84 ] Undoblocks can now be subscribed to, and the list that is returned from Undoblock.GetChangedObjects is now live and reused for the lifetime of the block.
Don't reflect into mscorlib when looking for EcoSpaceTypeName.
ElementCollectionImpl: If there is no .net type for an object, .AsObject will return an object[]
DerivedMember: Added support to validate the derived values even if there is no clr-type assigned to the member in UmlRt.
Changed to InternalGetByIndex for some ObjectList operations to avoid loading all objects in the list

DroopyEyes:

Added UTF32 encoding to XmlQueryService
Added AllowMultiple=True on AutoContainerAttribute
Changed the validator so that constraints are returned in the order defined in the model.
Autocontainers: Added optional IsCollection property so that it is possible to provide containers for collections.

Persistence:

Changed default value for SqlScriptStartTransaction for Sql Server to "BEGIN TRANSACTION"
Added source distribution for Firebird mapper

Docs:

Added a section on data binding to a combo box in the grid.
Added a section describing the structure of a new ECO solution

Vcl:

[ Mantis 345 ] The default dfm-value for TOclVariables.Variables.HandleMode did not match the value set in the constructor. This caused the value to be lost all the time, and always set to rmElement.

ASP:

EcoSpaceManager does not return EcoSpaces to the pool if an error has occurred (to avoid throwing a new exception if the ecospace is dirty that will hide the first exception)
[ Mantis 355 ] Typo in Webservice templates
[ Mantis 339 ] Let EcoDataSource.IsValidNewValues create a new object if called with a null key.

Winforms:

Statemachine tab in winform autoforms now re-render themselves on idle when the state has changed to reduce flickering.

VS Integration:

[ Mantis 351 ] Add AssemblyInfo to model project.
Add Asseblyinfo to EcoSpace project as well.
Use $UNIQUEGUID$ everywhere in templates.
Add Console version of persistence server to templates.
Open EcoModeler with VS integration on double-click, and "open" in the context menu.
Error messages now show up in the error-tab in VS

EcoModeler

Ocl-editor in EM now shows the model errors nicely if there are any
Errors in the model are now shown nicely when the EM prototyper is run.
Add logging of EcoModeler updating Project file.
Added support in EM prototyper for aggregation and composite associations,
EM prototyper now handles effect, entry and exit actions in statemachines
Improved errormessage in EM prototyper when there are duplicate names in states
Visual Style values in Visual tabs in diagram symbol dialogs easier to edit.
Default role names for recurrent (self) association made unique (Target_ClassName, Source_ClassName)
Association dialog checks for duplicate role names for recurrent associations
CodeGen: IList changed to IEcoList
CodeGen: HasUserCode: Fixed generation of Attribute and getter/setter
Splash/About image + added link to www.capableobjects.com
Help menu redirected links to support, news etc.
Help menu: customized + new item EcoModeler manual.
EcoModeler prototyper: Added support for constraints, DerivationOcl, Formernames

Eco 4.0.0.1707

Winforms:

ExpressionHandle and OclPSHandle now cache their static type to avoid parsing the ocl-expression when the type has not changed.

ASP:

Added Asp Autoforms to the Asp projects
Fixed bug in autoforms that would cause all rendered HTML to occur twice

Core:

[ Mantis 308 ] Make ExternalId of non-saved objects stable.
[ Mantis 040 ] Changed EcoSpace.LinkFetchStrategy: LinkFetchStrategy -> EcoSpace.DefaultLinkFetchStrategy: FetchStrategy. New enum is in namespace "Eco.Framework"
[ Mantis 334 ] Nullable types now conforms to nonnullable types. Reflected ocl-methods now convert nulls to default values if the operation does not explicitly accept nullable types
[ Mantis 349 ] Fixed order of activation when ecospace is deserialized
DirtylistService can now access the list of dirtyobjects while it is deserializing
The frontsideadapters for both derived and non derived multilinks now implement IEcoList (this is returned when calling aMultiLinkElement.AsObject).
ReflectionReader: Parameters like "a: ICollection " or "a: IEnumerable " will now be "EcoCallable".
ElementCollectionImpl.AsObject now returns a typed array (that will implement ICollection )
Add EcoListShimBase class, suitable for overriding in own implementations intercepting list operations.
Added ICacheContentService.ApplyDatablock
Better message for members typed as ECO class, but not part of association.
Don't even try to Ecoify models that aren't runnable.
Take best match rather than first match when reflecting for methods in class including superclasses.
Fixed problem in ocl-operation "excluding" and "difference" when the list is immutable.

VS integration:

[ Mantis 342 ] Implement IIdeProject.ContainsFile() and IIdeProject.AddNewTextFile() for VS2005.
No messagebox is shown when the user aborts schema creation.
Added icons and captions to error messageboxes.
Register SqlConnection in the Eco tab since it is not registered by default on the tool palette in VS2005/8
Create a CLR-safe name for use in namespace and class names in the wizards.
Better message when assembly is not found, mentioning the possibility that the project isn't compiled.
Add "copy local" to all ECO assemblies in Asp.csproj template.
Relinked missing event handlers in project wizard
Template changes:

Persistence:

[ Mantis 264 ] Added support for SqlServer syntax for quoting [names]
Improved errormessage when PMapper has no Connection
PMapper now supports mapping to tables/columns that contains space in the name. Added quoting of names in several places where it was missing
ExpandPrefix doesn't map characters anymore
Added ColumnDefinition.ParamName where space is mapped to "_"
SqlServer mapper now uses a NText field to store the ORMapping data
Improved error message when EcoSpaceTypeName in PersistenceMapperProvider can't be resolved to a type

Documentation:

Preliminary version av remote persistence
Changed API documentation generator from Sandcastle to Doc-o-Matic
Chapter 2: Added a section illustrating the difference between classes and instances.
updated screenshots

EcoModeler - Prototype tool

Added guards, triggers, and fixed an error about duplicate Initial states

Eco 4.0.0.1648

VS IDE:

Add "using System.Collections.Generic" to a number of templates.
Add menu option to launch EcoModeler integration.
Ensure that Eco tab is visible when messages are written to it.

Core:

[ Mantis 290 ] When CreateSchema, evolve or other operations from the EcoSpace/PMP designer fails, it will now also show a message box. In addition to that, PersistenceMapperSqlServer now initializes it settings to SqlServer2000/2005 when it is opened in the designer the first time.
[ Mantis 211 ] Added support for designtime initial values in VariableHandle
[ Mantis 123 ] Renamed parameter to EcoSpacePart.Serialize from "source" to "target" to better indicate what it is used for...
[ Mantis 272 ] Balanced the ocl parse-tree while building it to avoid getting too deeply nested trees with expressions like (x=1) or (x=2) or (x=3) or (x=4) ... or (x=n). Only applied for commutative operations (where (x op (y op z)) is equivalent to ((x op y) op z), and only if the expression is not explicitly parenthesised.
[ Mantis 230 ] PersistenceService now ignores objects that have been created and deleted again before they are sent to UpdateDatabase
OCL-editor now shows non-navigable association ends too. They are allowed in OCL.

Asp:

Add EcoSpaceManager.UsePool.

Eco 4.0.0.1620

Documentation:

Improved documentation for EcoModeler
Added Chapter 7 (creating an ASP.NET app) and 8 (Database operations)
Converted BDS/RadStudio documentation to VisualStudio (there are now two sets of documentation)
Added the EcoIIIServices documentation

VS wizard:

Added support for styling the readme.html files in the VS project wizard
Fixed incorrect handling of "no persistence" case
GAC Eco.Ide.VS2005 to avoid any permission issues under Vista
Set StartupProjects in ECO solutions.
Change name of ecoxml-file in template to ModelMergeData
No longer put PersistenceMapper in subdirectory of EcoSpace project
Add setting of Package name to Solution Wizard.
Install Eco webform template in right place.
Updated look&feel

Core:

[ Mantis 276 ] Fixed Invoking of methods when there is no method pointer (this happens when running the prototype tool)
Improved errormessage when a trigger is executed, but no valid transition can be found
Added IAutosubscriptionService (still experimental)
Fixed design time null reference exception in IVariableFactoryService when the service is used but not activated
Added "AllowPartiallyTrustedCallers" to all runtime assemblies so they can be used in a hosted IIS environment
Setting "BooleanSwitch.Enabled" requires full trust, so before trying to change the eco log switches, the code checks if it really is changed
Refactored ExternalIdService so that it doesn't call soap serialization unless it really has to to be able to run with partial trust
Removed calls to Assembly.GetAssemblyName (required full trust)
[ Mantis 221 ] Ocl Expressions with associative operations does not render sql-queries with parenthesis around the arguments anymore.
[ Mantis 052 ] Added default values for ECO_TIMESTAMP column so it can be added by evolve

ASP/EcoDataSource:

HttpException with descriptive text rather than null reference exception if EcoDataSourceId is not set to a valid value at runtime.
Renamed static method ActionExecutor.Create to CreateObject to make it callable from Delphi.net
Fix for validation logic in ExecuteInsert and ExecuteUpdate.
[ Mantis 294 ] EcoDataSourceView: Added a missing call to "Configure(false)" in IsValidNewValues to setup the properties in the controlpack
Add overload EcoDataSource.Insert(IDictionary values) to allow setting intitial values.

Persistence:

Added support for NexusDb

EcoModeler:

Fixed modelrun bug with associations.
Package rename now works, and integration locates project containing .mmcseco file rather than the other way around.

DroopyEyes:

Added generic List overload to IConstraintProvider

Delphi codegen:

[ Mantis 310 ] The parameterless constructor in delphi is now only added if the class does not have a superclass.

VCL

Added ReverseDeriveValue and DeriveValue published events on VCL OclPsHandle
Added ReverseDeriveValue as a published property on the VCL handles
Improved exception when VariableHandle.SetElementValue is called when no element is assigned internally

WPF GridView with edit and EcoBinding

Administrator — Sat, 14 Feb 2009 10:11:41 GMT

This sample has a GridView; I took it more or less from MS and added EcoBinding to it:

It shows how you can do the rendering stuff i Xaml that you did in the Handle columns before:

<GridViewColumn.CellTemplate>  <DataTemplate>    <StackPanel Orientation="Vertical">      <TextBlock Text="{eco:EcoBinding Expression=self.Employees.LastName.asstring+\' works at \'+self.Jobs.Name.asstring+\' and is number  \'+self.Number.asstring}"/>     <TextBlock>
  </StackPanel> </DataTemplate></GridViewColumn.CellTemplate> 
The attachement function in this KB has issues. Here is a download link for the sample GridWithEdit.rar

Navigating the properties of a struct in ocl

Jonas Högström — Thu, 08 Jan 2009 12:33:31 GMT

If your model contains structs that you want to be able to navigate in OCL, here is how to install custom OCL operations to make it work:

First of all, define the struct:

public struct Coord
    {
        public int x;
        public int y;
        public int z;
        public override string ToString()
        {
            return string.Format("{0}:{1}:{2}", x, y, z);
        }
    }

Then add a helper class with a static method for each of the properties:

public struct Coord
    {
        ...
        public class CoordOclHelper
        {
            public static int x(Coord coord) { return coord.x; }
            public static int y(Coord coord) { return coord.y; }
            public static int z(Coord coord) { return coord.z; }
        }
    }

Finally, install the helper class as an OCL operation in your EcoSpace:

    [Eco.Ocl.Support.EcoOclOperation(typeof(Coord.CoordOclHelper), true)]
    public partial class EcoProject42EcoSpace: Eco.Handles.DefaultEcoSpace
    {
      ...
    }

This will make the parts available in OCL in runtime, but not indesigntime. You can now write OCL expressions like:

      aShape.Points->select(p|p.Coordinate.x > 100)

Modelling with ECO5

Administrator — Wed, 07 Jan 2009 17:35:34 GMT

This video is 10 minutes and shows the new modelling tools in ECO5.
This is a list of the features described:

New model
Colors
Sizes
zooming
Keyboard navigation
Keyboard move
TypeToEdit
Rooted points
Via points
Squared lines
Choose what to show
Multiple diagrams
Search
Documentation
Execute

http://www.capableobjects.com/cam/NewsInModlr/thisone.htm

The design time abilities of ECO5 is handled by a VisualStudio plugin we call Modlr.
All the functionality available in Modlr will also be available in a standalone application we will call Gaffr.

The Modlr logic is built with ECO technology on top of two packages; ModelLayer that introduce Class, association etc and the ExtendedModelLayer that introduce things like Diagram and PlacedClass. The multi level undo and redo of Modlr is strictly ECO functionality, currently you can even bring up the EcoSpaceDebugger of Modlr to allow you to search for things like PlacedClass.allinstances->select(self.Class.Name='SomeName'). Since Modlr is mostly a WPF application it is also a proof that ECO is presentation-tier agnostic.

The framework argument

Administrator — Sun, 28 Dec 2008 20:10:50 GMT

The framework argument

This presentation is 25 minutes of compact talk about what the arguments are for using a framework in the first place. And ECO in particular.

http://www.capableobjects.com/cam/theframeworkargument/camtasia/camtasia.html

Maybe you have a gut feeling that ECO will make you and your team more focused and more productive, but you have a hard time explaining it to the people that needs to decide? Listen to this presentation to find your arguments! Or have the decision makers listen to it!

The talk goes over both the direct boost effects like generated code from the model, but also covers the dynamic effects that are expected once you are not afraid of changes and you feel completly in control.

Implementing a derived association in ECO4

Jonas Högström — Tue, 07 Oct 2008 23:35:58 GMT

Eco4 introduces automatic subscriptions, so when implementing code derived attributes or associations, there is no need to handle the subscriptions manually any more. Once you have marked the attribute or association as derived in the model and updated your generated code, you should implement a method called "MyAttributeDerive" or "MyAssociationEndDerive". Suppose you have a model with two classes, Person and Project, and a derived association BigProjects between them like this:

The code to derive the BigProjects association end would look like this (add this method to the Person class):

        private object BigProjectsDerive()
        {
            IList<Project> res = new List<Project>();
            foreach (Project p in Projects)
                if (p.Budget > 10000)
                    res.Add(p);
            return res;
        }

How to set up Autoinc keys with ECO

Jonas Högström — Tue, 07 Oct 2008 23:34:12 GMT

When storing objects in a database ECO will allocate unique IDs to each object. The default mechanism will allocated the IDs using a table called ECO_ID (surprise surprise). If you want to change to database generated IDs (AutoInc), follow these steps:

Open your PersistenceMapperProvider designer
Add a DefaultORMappingBuilder component on the designer
Rightclick it and select "Setup AutoIncKeys"
Select your PersistenceMapperXXX and set "RuntimeMappingProvider" and "NewMappingProvider" to the new component (defaultORMappingBuilder1)

This change is not supported by DbEvolve, so you will need to regenerate the database schema after this change. Any new table added by evolve after this change will have the correct column type, but old tables will not be updated.

Introduction videos

Administrator — Wed, 25 Jun 2008 10:59:21 GMT

We made some instruction videos to show just how easily you can get started with ECO for Visual Studio.
In these videos Hans Karlsen (CapableObjects) starts from scratch and creates a simple model for the domain of project planning.

A simple model is created, then extended in a couple of steps showing the ECO feature of model evolution and automatic db-changescript creation.
The ECO Context Agent that helps you to set up databind components is shown.
The benefits of a domain model, with application wide model-view is shown.
A third-party standard .net visual component, Gantt in GTP.NET from plexityHide.com, is integrated for visualization and editing of the data defined by the model.
Hierarcical databinding in a single component, not just master-detail, is shown.
Derived attributes are shown in a context where you directly can see the benefit of using them.

No cuts are made in the first two videos so what you see is what you get - a live project planning Gantt chart with the data stored in a database (SQLExpress) is produced in 1 hour.

Add up the resources needed (in euros) to produce your very own ERP solution that fits your organisation like a glove:

ECO for Visual Studio: aprox 600 euro
GTP.NET from plexityHide: aprox 600 euro
Your own time and domain knowledge: <add this yourself>

http://capableobjects.no-ip.com/cam/EcoFromScratch_Project.html

http://capableobjects.no-ip.com/cam/Eco_FromScratch_Part2.html

List all OCL operations in ECO

Jonas Högström — Tue, 24 Jun 2008 23:33:45 GMT

This archive contains a sample asp webpage that will list all the OCL operations that are installed in an EcoSpace.
It also contains a generated html-page with all the operations listed.
Each operation is listed with its name and parameters and some additional information.

To run the page, you need to add it to your own ECO ASP project and set the EcoSpace type of the EcoSpaceManager.

Download

Administrator installs and ECO + RadStudio

Jonas Högström — Thu, 22 May 2008 11:15:35 GMT

The ECO installer writes a few things to the registry duringstartup. The build that shipped with RadStudio 2007 (4.0.0.91) onlyinserted the registry entries in HKCU (CurrentUser), but later builds also inserts the values into HKLM (local machine). This meansthat RadStudio will copy the values to the CurrentUser registry thefirst time the user starts RadStudio.

If you have already started RadStudio without the ECO registry settings in HKLM, you now have a registry key called HKCU\Software\Borland\BDS\5.0 that doesn't contain ECO settings, and it will be solved by installing the newer builds since RadStudio only copies the registry settings from HKLM if HKCU is empty.

These are your options:

Alternative 1:
* Remove the registry key HKCU\Software\Borland\BDS\5.0
* Restart RadStudio

pro: easy
con: you loose lots of other settings in RadStudio

Alternative 2:
* insert the following keys manually:

Key	HKCU\Software\Borland\BDS\5.0\Known Assemblies
Name	C:\Program Files\CapableObjects\ECO\4.0\Design\BDS\Eco.Vcl.Design.dll
Value	Eco - VCL designtime support

Key	HKCU\Software\Borland\BDS\5.0\Known IDE Assemblies
Name	C:\Program Files\CapableObjects\ECO\4.0\Design\BDS\Eco.BdsLoader.dll
Value	Eco - IDE integration

pro: Enables ECO without loosing any settings
con: A tad more work than the first solution

Eco and Licensing

Jonas Högström — Fri, 25 Apr 2008 15:52:13 GMT

The free version of ECO allows you to use up to 12 classes, no questions asked. You can deploy the application for personal or commercial use. If you need to use more than 12 classes you need to have a license.

Licenses for Eco for Visual Studio can be purchased at the capableobjects website. A license for Eco for RadStudio is included when you buy RadStudio 2007 Architect.

To install a new license, open the ECO aboutbox and klick the button "Enter License".

The license is stored on disk in the following folder:

Vista: C:\ProgramData\CapableObjects
Windows XP: C:\Documents and Settings\All Users\Application Data\CapableObjects

In designtime, a license will allow you to use the ECO designtime support with more than 12 classes. The aboutbox will indicate if ECO has detected the presence of a license or not.

In runtime, the ECO framework will load the license information from an embedded resource in your application. To get the license information embedded in the application, ECO adds a file called "licenses.licx" to your project. Your IDE will call an application called LC.exe (LicenseCompiler) when it tries to compile a project with a licx-file in it.

This file should contains a single line:
Eco.Handles.DefaultEcoSpace, Eco.Handles

Other third party components that use the same license mechanism will add additional lines to this file.

In build 4.0.0.2230 and later, the ECO license should be included in the project that contains the EcoSpace. Earlier builds looks for the license in the binary of the application (which means that you must include the licx file in the Winform/ASP/VCL/Server application). It is not enough to have a licx-file in the directory of your project, it must be included in the project.

To check if your binary really includes a license, you can inspect it with Reflector. Check the resource-section of your assembly/executable. It should contain a resource called "EcoProject5.EcoSpace.dll.licenses" (or something similar) and in the contents of the resource you should be able to see:

000000: 00 01 00 00 00 FF FF FF FF 01 00 00 00 00 00 00 .....????.......
000010: 00 10 01 00 00 00 02 00 00 00 06 02 00 00 00 18 ................
000020: 45 43 4F 50 52 4F 4A 45 43 54 35 2E 45 43 4F 53 ECOPROJECT5.ECOS
000030: 50 41 43 45 2E 44 4C 4C 09 03 00 00 00 04 03 00 PACE.DLL........
000040: 00 00 1C 53 79 73 74 65 6D 2E 43 6F 6C 6C 65 63 ...System.Collec
000050: 74 69 6F 6E 73 2E 48 61 73 68 74 61 62 6C 65 07 tions.Hashtable.
000060: 00 00 00 0A 4C 6F 61 64 46 61 63 74 6F 72 07 56 ....LoadFactor.V
000070: 65 72 73 69 6F 6E 08 43 6F 6D 70 61 72 65 72 10 ersion.Comparer.
000080: 48 61 73 68 43 6F 64 65 50 72 6F 76 69 64 65 72 HashCodeProvider
000090: 08 48 61 73 68 53 69 7A 65 04 4B 65 79 73 06 56 .HashSize.Keys.V
0000A0: 61 6C 75 65 73 00 00 03 03 00 05 05 0B 08 1C 53 alues..........S
0000B0: 79 73 74 65 6D 2E 43 6F 6C 6C 65 63 74 69 6F 6E ystem.Collection
0000C0: 73 2E 49 43 6F 6D 70 61 72 65 72 24 53 79 73 74 s.IComparer$Syst
0000D0: 65 6D 2E 43 6F 6C 6C 65 63 74 69 6F 6E 73 2E 49 em.Collections.I
0000E0: 48 61 73 68 43 6F 64 65 50 72 6F 76 69 64 65 72 HashCodeProvider
0000F0: 08 EC 51 38 3F 01 00 00 00 0A 0A 0B 00 00 00 09 .?Q8?...........
000100: 04 00 00 00 09 05 00 00 00 10 04 00 00 00 01 00 ................
000110: 00 00 06 06 00 00 00 64 45 63 6F 2E 48 61 6E 64 .......dEco.Hand
000120: 6C 65 73 2E 45 63 6F 53 70 61 63 65 2C 20 45 63 les.EcoSpace, Ec
000130: 6F 2E 48 61 6E 64 6C 65 73 2C 20 56 65 72 73 69 o.Handles, Versi
000140: 6F 6E 3D 35 2E 30 2E 30 2E 30 2C 20 43 75 6C 74 on=4.0.0.0, Cult
000150: 75 72 65 3D 6E 65 75 74 72 61 6C 2C 20 50 75 62 ure=neutral, Pub
000160: 6C 69 63 4B 65 79 54 6F 6B 65 6E 3D 34 36 61 38 licKeyToken=46a8
000170: 33 33 62 65 39 65 39 30 64 65 38 63 10 05 00 00 33be9e90de8c....
000180: 00 01 00 00 00 06 07 00 00 00 27 37 31 45 36 2D ..........'XXXX-
000190: 30 36 36 35 2D 36 38 35 33 2D 32 45 42 41 2D 45 XXXX-XXXX-XXXX-X
0001A0: 33 30 31 2D 31 36 34 32 2D 32 35 31 33 2D 38 36 XXX-XXXX-XXXX-XX
0001B0: 39 38 0B XX.

Note:
Some third party components seems to replace the contents of the licenses.licx-file rather than just append to it, so if you are using other components that use the licenses.licx-file for its license management, you may want to check if it still contains the line

AttributeMappers

Jonas Högström — Fri, 18 Apr 2008 02:10:54 GMT

When ECO builds the O/R mapping layer, it has to decide how to convert the values of the databasecolumn to the values of the attributes in the ecospace. This isperformed by an attribute mapper, and the O/R mapping layer has todecide which attribute mapper to use for each attribute. To decide this, there is thecollection PersistenceMapper.SqlDatabaseConfig.PersistenceMappers. Thiscontains of a collection of name/mapper pairs. The name is normally theCLR-name of a type (such as System.String or System.DateTime), butcan be anything. The algorithm for deciding the mapper for an attributeis to look for an attribute mapper in the following order:

the Tagged Value "PMapper" on the attribute
The string "ClassName.AttributeName"
The CLR-name of the type of the attribute

If you want to replace the mapper for all DateTime attributes, then allyou need to do is to create your new mapper, and fit it into thecollection with the name System.DateTime. The attribute mappercontrols the following things:

how to convert from db to memory and back
the sql type of the column if we need to generate or evolve a db
the default db value (practically only used when evolving)
converting a value to a string literal

The source for all the attribute mappers in eco is included, and often, the easiest thing is to copy an existing mapper for the same datatype and modify it to suite your needs.

Persisting derived attributes

Jonas Högström — Fri, 18 Apr 2008 02:04:28 GMT

A derived attribute looks like it is always up to date. This is achievedby using subscribers. Whenever you ask for the value the first time, itwill be calculated, and subscriptions placed. If any of the underlyingvalues change, the subscriptions will be triggered, the derivedattribute will be marked out of date, and if you ask for it again, itwill be recalculated. Subscriptions are placed automatically if you useOCL to derive the value, and manually if you have a code-derivedattribute.

Many derived attributes are based on other attributes in the sameobject, and in this case, the derived attribute would always be "inmemory" when the other attributes changed, and could be updatedtogether with the rest of the object. However, in many cases, thederived attribute is based on attributes in related objects (such as anordersum). If one client loads one of the products of an order (but notthe order) and changes the list-price, the subscriptions of theorder-sum will not trigger (as the ordersum has not been calculated).If the product is saved, then a persisted ordersum would simply bewrong.

It would be possible to figure out what ordersums could be affected bya change in a product price, but it requires reverse evaluation ofocl-expressions (unless the derivation is performed in code, then Ithink it is practically impossible).

In order to have persistent derived attributes, you would have to havepersistent subscriptions too.

There are several different approaches to achieve something similarthough. One is to have a derived attribute and a peristent attribute.At certain events (such as shipping an order, or whenever the value ofthe derived attribute is "frozen"), the persistent attribute is set tothe value of the derived attribute. After this point, the persistentattirbute can be used instead of the derived attribute (for reportingdirectly in the db, or simply improved performance).

The above can be amended with more modeled information. Assume youhave the derived attribute DerivedOrderSum and a persisted version ofthe same information called PersistedOrderSum as outlined above.

To avoid having to remember when to use which one, add OrderSum,also a derived attribute. Also add a flag indicating if the order sumhas frozen. call that boolean attribute OrderSumFrozen.

With this, use the following OCL to derive OrderSum:

if OrderSumFrozen
PersistedOrderSum
else
DerivedOrderSum
endif

That way you can refer to OrderSum in code and UI and always get the"cheapest" calculation allowed by your business rules to retrieve yourdata. OrderSumFrozen would probably be set as a consequence of theorder object changing state to Confirmed or something to that extent.

Multiple datasources, PersistenceMapperMultiDb

Jonas Högström — Fri, 18 Apr 2008 02:00:03 GMT

In ECO, a single ecospace can use multiple databases to load/storethe objects. A few restrictions apply:

all embedded parts of an object must reside in a singledatabase (this includes attributes and embedded singlelinks, includinginherited such).
all databases must be supported by Eco (either usingPersistenceMapperBdp, PersistenceMapperSql or some other custom madePersistenceMapper that derives from PersistenceMapperDb

The databases can use either thestandard ECO O/R mapping (using ECO_ID columns etc) or use custommapping (specified using an XML-file).

The key component to tap into this is the PersistenceMapperMultiDb.it acts as a kind of aggregator for all the databases that the ecospaceis going to use. This can be used directly in an ecospace.

Ok, now you have a PersistenceMapperMultiDb, now you have to make itaggregate some databases. The new component has a collection propertycalled "PersistenceMappers". This is a collection ofName/PersistenceMapper pairs. You need to add aPersistenceMapperBdp/Sql/whatever for each database you need toretrieve data from. You can use any combination of persistencemappers,depending on the databases you plan to connect to). Each databaseshould be assigned a unique symbolic name (the name property in thecollection). This can be any name, such as "customerdb". It does nothave to have any relationship with the connectionstring of the database(but it usually makes sense to use something from theconnectionstring).

By now you have a set of databases, each with a unique name. letscall this name the "DatabaseName". Now you have to tell ECO where eachclass comes from (remember, each class must come from exactly onedatabase.You can not have customers in multiple databases - unless you modelthem as different classes of course).

The location of an object can be specified in several differentways. If the class is "default mapped" using standard ECO mapping, yousimply set the tagged value Eco.Database to theappropriate database name. If you want to use custom mapping (anXML-file), you have two options, either you can specify an XML-file foreach database that you have custom mapping for, and then add aFileMappingProvider to eachPersistenceMapper, and set the correct filenames.

Important: For each PersistenceMapper that specifies its own custom mapping, you have to set the boolean property ImportConfig in the collection of the PersistenceMapperMultiDb to true.

You can also specify a compound mapping file where you specify thecustom mapping for all databases in your system. If you do this, youmust specify the database name for each class in the mapping file likethis:

If you have a compound mapping file, then you have to set up aFileMappingProvider for the PersistenceMapperMultiDb (use theRuntimeMappingProvider property).

You can have associations between objects in different databases.The classes can be modelled in separate packages if you want to. If theassociation is 1--1 or 1--n you just have to make sure you set the"embedded" flag correctly on the side that exists on one of thedatabases. If the associaiton is n--m then you have to specify the O/Rmapping for the link-class, but this is just like for any custom mappedmodel.

I'll also mention a few words about transactions. ECO can operate inthree different transaction modes when it uses multiple databases:

No transactions - no transactions are used what so ever, this is normally not something you want.
Local transactions - ECO uses the local transactions availablein each database. all update operations will be performed first, andthen all databases will be committed (unless an exception has occuredduring the update, then all databases will be rolled back. This cancause an inconsistency if the second commit fails as the first commitcan not be rolled back anymore.
Distributed transactions - ECO uses distributed transactions(also called two-phase commit) to control the behaviour of the update.if any of the datbases fails to commit, all will be rolled back. Thisis currently only supported for PersistenceMapperSql since BDP does notsupport this. The default implementation uses the utility classes ofthe System.EnterpriseServices namespace (this is a wrapper for com+distributed transactions, or MSDTC). It is possible to implementsupport for another distributed transaction manager, but currently Idon't know of any other. If anyone is interested in details, please letme know.

Nestings in the Winform handles

Jonas Högström — Fri, 18 Apr 2008 01:55:39 GMT

To start of, the handles render the input list into a number of objects(shown as rows in a grid) with a number of properties (in most casesshown as columns in the grid") BTW the terminology for those propertiesin the .Net docs is very inconsistent, properties, columns, members.

These objects are the object int he IList implemented by the handles(and alse returned by GetList() for historical reasons).

The property/column/member:s are defined by the list also implementingITypedList.

Each such property/column/member can be either a single value, or a newlist (possibly of a single element). If it is a single value it can bedisplayed in a column.

If it is a list then in will be displayed in the Grid with a '+', whichwill fold out to a new (nested) set of rows.

The Nesting property is used to define which properties/column/membersthe object in that sublist will have. Some of these may in turn belists, each Nesting value essentially has the same data-renderingproperties as the handle itself, AddDefaultColumns, AddDefaultNestings,Colums.

A Column is defined as being a list by setting the Nested property totrue. In this NestedName will specify which Nesting that defines thecolumn for the objects in that list (which is usually and Eco classsuch as Person). If no name is given, the static type of the object inthe list will be used as NestingName, and if the is no Nesting propertyfor that Name, the default columns for that class will be used.

So, let us say that you are a person, and want to be able to show youparents, and your childen, and you want to show the full informationfor you parents, but only the name of your children.

You would then add a column Parents with OCL expression ´self.Parents,Nested=True, an no NestingName. This will lead to the default Personinformation being shown for the parents.

For the children, the expression would be self.Children, Nested=true,and NestingName="PersonWithNameOnly".

You would then add a nesting with the name PersonWithNameOnly,AddDefaultColumns set to false, and a single column for name in theColumns collection.

You can control the display of a particular nesting by adding aTableStyle to the grid with the TableName set to the name of thenesting.

So, the value of a handle can be a pretty general tree, rather thanjust a rectangle.

Immutability

Jonas Högström — Fri, 18 Apr 2008 01:52:00 GMT

Question: After`Person.allInstances->orderBy(name) (ExpressionHandle.Element asIObjectList).AddNew() throw the Exception:System.NotSupportedException. Is this correct behaviour?

Answer: Most ocllist-operations will create a new list rather than manipulating theorignal one. The new list is readonly and does not have any connectionto the original list. It does not know how to perform an AddNew operation. The same would have happened if the original list had been an association end. Imagine for example the expression:

 Person.allInstances->select(assets > 10000)

If you would try to add a new object tothis list, it would have to have the attribute assets set to a valuethat would qualify in the condition.

In the case of ordering, the AddNew would have to takeinto account that the list is ordered (something that the list itselfis unaware of) in order to add the new object in the correct possition.

The solution is to add the new object to a list that is notfiltered/ordered, and it will appear in the correct position in theordered list in the handle (thanks to subscriptions)

Delayed Fetch

Jonas Högström — Fri, 18 Apr 2008 01:50:08 GMT

The default behaviour for ECO when fetching an object is to fetchall attributes, and all "embedded" singlelinks (a "singlelink" is anassociationend with multiplicity 0..1 or 1, Embedded is any single link that is stored in the table of the object, an association with the multiplicities 0..1--0..1 (two single links) is only allowed to be embedded in one end to avoid the risk of inconsistencies).

When ECO fetches an object, it does not know what it is going to beused for, how it is going to be displayed. If you have attributes thatare very expensive to fetch (normally large text fields or binary data,such as images), you can mark them as "delayed fetch":

Select the attribute in the class diagram
Set the property Delayed Fetch to true.

This attribute will not be fetchedwhen the object is fetched, but if you access it later, it will befetched. You might save some performance/memory consumption upfront,but if you are actually going to use the attribute, it will be moreexpensive to fetch it in a separate call to the database. It is simplya trade off. Normally, ECO is able to perform intelligent fetching of multiple objects in a singlequery, but for DelayedFetch attributes, they are usually fetched one by one.

Remove EcoIV license dialog from VisualStudio

Jonas Högström — Fri, 18 Apr 2008 00:58:33 GMT

Due to an oversight from our part, the installer for ECO that shipswith RAD Studio 2007 will also install a partly finished version of ECOfor Visual Studio.

It is not usable, but will repeatedly ask for a license each time VSis started, and each time a project is opened. It will also ask for alicense key when Microsoft Update applies a Visual Studio patch, butwill then do so in the background.

The .reg file in this archive will remove the Visual Studio integration of ECO (but not the integration into RAD Studio 2007).

If you want to use ECO in Visual Studio, please visit the main download section and download an updated version that works with Visual Studio.

test

Jonas Högström — Fri, 18 Apr 2008 00:53:32 GMT

test