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GGC: ForeignKeyReference relation - troubles with adding new value

Thread ID:





49513 Sep 20,2006 09:48 AM Sep 21,2006 07:15 AM Windows Forms 1
Tags: GridControl
Konstantin Babiy
Asked On September 20, 2006 09:48 AM

I am having some troubles using Grid Grouping Control, when a cell is referrenced onto other table with RelationKind = RelationKind.ForeignKeyReference

I set relationDescriptor.ChildTableDescriptor.AllowNew = true
relationDescriptor.ChildTableDescriptor.AllowEdit = true

I expect user to have an ability to add new record to a parent related table.

This behaves very strange in my application now: setting allowEdit to False makes dropDown table (which is in edit mode) disappear on my click.

I also had a situation (don''t know how I did it), when dropDown table doesn''t disappear and adding new field is edited, but after closing this table, application crashes with an exception:

System.ComponentModel.Win32Exception: Error creating window handle.
at System.Windows.Forms.NativeWindow.CreateHandle(CreateParams cp)
at System.Windows.Forms.Control.CreateHandle()
at System.Windows.Forms.Form.CreateHandle()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.MdiClient.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

I would appreciate any help to solve this problem.

Administrator [Syncfusion]
Replied On September 21, 2006 07:15 AM

Hi Konstantin,

I was not able to reprodue this problem here(Essential studio 4.2+windows XP SP3+ .Net FrameWork 1.1/2.0), please see the attached sample that works fine with the ForeignKeyReference in the grid.

Here is a sample.

If this did not help, please update us with a sample project showing the problem.



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