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I have a System.Windows.Forms.UserControl on a popup menu. I can display the control one time. When it pops up the second time I get this following exception:

{"Unable to cast object of type ’AZSim.Symmetry.Windows.Forms.SourceBrowser’ to type ’Elegant.Ui.Control’."}

Statck Trace:

   at Elegant.Ui.DropDown.PopupHidingDelayTimer_Tick(Object sender, EventArgs e)

   at System.Windows.Forms.Timer.OnTick(EventArgs e)

   at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)

   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(Int32 dwComponentID, Int32 reason, Int32 pvLoopData)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

   at System.Windows.Forms.Application.Run(Form mainForm)

   at AZSim.Symmetry.Program.Main() in C:\Users\brandon\Documents\dev\cms\Products\SAFGen\src\core\SAFGenExe\Program.cs:line 18

Any sugestions?

Brandon

We tried to reproduce the problem but failed. Could you send us a sample or provide more info about the problem if it is possible at all so we can help you.