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PopupCloseRequestListener exception

Thread ID:





92145 Dec 22,2009 06:20 PM UTC Dec 24,2009 12:50 PM UTC WinForms 1
Tags: Tools
Administrator [Syncfusion]
Asked On December 22, 2009 06:20 PM UTC

Every once in a while, we get an exception thrown that we're having some trouble figuring out. the stack trace is below.
It occurs when a user is in our application opening dialogs, doing stuff and then moves mouse focus to a completely different app (say a web browser or email client).
I see the exception is thrown by PopupCloseRequestListener but I can't figure out which of our controls uses that class.
Any ideas?

System.NullReferenceException: Object reference not set to an instance of an object.

at Syncfusion.Windows.Forms.PopupCloseRequestListener.FormDeactivate(Object sender, EventArgs e)

at System.EventHandler.Invoke(Object sender, EventArgs e)

at System.Windows.Forms.Form.OnDeactivate(EventArgs e)

at System.Windows.Forms.Form.set_Active(Boolean value)

at System.Windows.Forms.Form.WmActivate(Message& m)

at System.Windows.Forms.Form.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)

Dhivya K [Syncfusion]
Replied On December 24, 2009 12:50 PM UTC

Hi Mark,

Thank you for your interest in Essential Tools.

Can you please create an Direct Trac incident and provide us with a minimal sample or code snippet or the controls used in your application? This will help us to reproduce the issue and fix the same.



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