The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
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)
DKDhivya K Syncfusion Team 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.