Object reference errors on Citrix environment

[sunil]

Dear All,
We have developed a WinForm application in .net 1.1 sp1 and we are
getting spontaneous errors while working with the application under
Citrix. In a normal Client it works well...
Can someone give some pointers...

InnnerException: Object reference not set to an instance of an object.
Stack Trace: at
System.Windows.Forms.UnsafeNativeMethods.PeekMessage(MSG& msg,
HandleRef hwnd, Int32 msgMin, Int32 msgMax, Int32 remove)
at System.Windows.Forms.Timer.set_Enabled(Boolean value)
at System.Windows.Forms.Timer.Stop()
at C1.Win.C1TrueDBGrid.BaseGrid.Frame.Dispose(Boolean disposing)
at C1.Win.C1TrueDBGrid.C1TrueDBGrid.Dispose(Boolean disposing)
at System.ComponentModel.Component.Dispose()
at
itbWF.Foundation.ExtendedControls.ITBBaseGridFunctions.Dispose(Boolean
disposing)
at itbWF.Foundation.ExtendedControls.ITBGrid1.Dispose(Boolean
disposing)
at itbWF.Foundation.ExtendedControls.ITBListView.Dispose(Boolean
disposing)
at itbWF.Foundation.ExtendedControls.ITBEditableGrid.Dispose(Boolean
disposing)
at itbWF.Foundation.ExtendedControls.ITBEditableGrid.Dispose()
at iMedWF.iMA.CBV.CBVDocEntriesFO.Dispose(Boolean disposing)
at System.ComponentModel.Component.Dispose()
at itbWF.i1cCommunication.WindowManager.CloseFromFormCalled(Object
sender, EventArgs e)
at System.Windows.Forms.Form.OnClosed(EventArgs e)
at System.Windows.Forms.Form.WmClose(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at itbWF.Foundation.ITBForm.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)
Source: System.Windows.Forms

=====================================================
InnnerException: Object reference not set to an instance of an object.
Stack Trace: at
System.Windows.Forms.SafeNativeMethods.RealizePalette(HandleRef hDC)
at System.Windows.Forms.Control.SetUpPalette(IntPtr dc, Boolean
force, Boolean realizePalette)
at System.Windows.Forms.Control.WmQueryNewPalette(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at itbWF.Foundation.ITBForm.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32
msg, IntPtr wparam, IntPtr lparam)
Source: System.Windows.Forms
=========================================================

Please let me know how do I trace and fix these problems...

Thanks & regards
Jack

 

[sunil]

Has anyone faced a similar problem in Terminal Server too? If I can get
some pointers related to this it will be very useful...thanks...

Many regards
Jack