Hi Vijay,
attached is a simple example, which you can use to reproduce the error. It was developed using VS Studio 2005 Beta 2 and Syncfusion Essential Studio 3.3.0.0.
Just open MainForm both in Code- and DesignView. This should work fine. Then switch to the CodeView and make a small change, e.g. just adding a blank or a new line. Switch to the DesignView again and the Visual Studio will try to update the Designer, because something has changed in the code. This causes the error, which you can also see in the screenshot (error.jpg), which I also included in the zip-File.
If you close the DesignView of MainForm and then reopen it, it is OK again. But that''s a little inconvenient.
Regards,
Andreas
dockcrash_534.zip