Virtual Grid exception

[Stefan Tsalapatis]

Hi ,

I use Virtual Grid
v.4.1.0.4 (beta).

I open a dialog form with a GridControl.
When I close the form, it does not
free the Grid,and when the application
exits raises a null reference exception.
Only if I dispose the form explicitly,
then it does not raise the exception.
This problem didn''t appear in v.3.3.
(I implement the interfaces IGridModelDataProvider, IGridControlBaseEventsTarget.)

I suppose it is related with resetting of volatile data.

at Sync.Windows.Forms.Grid.GridModel.get_TableStyle()
at Sync.Windows.Forms.Grid.GridControl.get_TableStyle()
at Sync.Windows.Forms.Grid.GridControl.get_Font()
--------- ! here !-------
at System.Windows.Forms.Control.AssignParent(Control value)
at System.Windows.Forms.Control.ControlCollection.Remove(Control value)
at System.Windows.Forms.Control.Dispose(Boolean disposing)
at Sync.Windows.Forms.ScrollControl.Dispose(Boolean disposing)
at Sync.Windows.Forms.Grid.GridControlBase.Dispose(Boolean disposing)
at Sync.Windows.Forms.Grid.GridControlBaseImp.Dispose(Boolean disposing)
at AristonTools.AristonGrid.Dispose(Boolean disposing)
at AristonTools.AristonGrid.Finalize()

Regards

[Administrator]

Hi Stefan, We tried to reproduce this in V4.1 by just implement IGridModelDataProvider interface to the GridControl, but could not get this issue. Maybe I am not following the steps that you are doing. Attached sample working fine here. Can you post a small sample showing this problem or tell us how to see it in the Browser sample/Attached sample? Here is a sample for implementing it. CSIGridModelDataProvider.zip If you can provide more information, we can try to suggest some solution. Regards, Haneef