why there is difference in the following behaviours:?

1.

a. Open a form that loads 1000 Eco objects

b. Close the form

c. EcoSpace.Active = false; EcoSpace.Active = true;

Result: 1000 objects loaded

2.

a.  Loading the same 1000 objects with IObjectList iol = EcoServiceHelper.GetExtentService(rhRoot.EcoSpace).AllInstances(typeof(DatenpunktDef));    iol.EnsureObjects();

b. EcoSpace.Active = false; EcoSpace.Active = true;

Result: 0 objects loaded

The only difference I see is that iol is a local variable in a method of the test form, whereas the form in scenario 1. is a private member of the test form. But If I use .Close() on the form containig 1000 objects it doesn't chenge the behaviour.

What's the matter?

/Efim

The only thing I don't like is that it should be done in the calling form:

private MyCalledForm myCalledForm = null; 

..................................

if (myCalledForm == null)

   myCalledForm = new MyCalledForm(EcoSpace);

myCalledForm.Show();

........................

if (myCalledForm != null)

{

    myCalledForm = null;

    GC.Collect();

    EcoSpace.Active = false;

    EcoSpace.Active = true;

}

Can I achieve the same without holding the local form reference (myCalledForm in this case) in the calling form?

I tried already to do the same in FromClosed event of the MyCalledForm, but it didn't work.

Yes, I had in mind this solution, but I'm not sure so far what other problems can appear when working with multiple EcoSpaces. For ex. when 2 forms have common data or when synchronizing with EcoSpaces of other clients using Remote Persistence.

/Efim