Unable to cast object of type 'X' to type 'X' - ASP.NET

Question

I am currently working with a ASP.NET Web site project in Visual Studio 2008 and everytime I make a change to code behind page for a user control and browse to page that is

Answer 1

Eurekaaa!! Got it... This one works...

When you grag drop the usercontrol or load it via the LoadControl method use a 'tilde' in its path. E.g. this.LoadControl("~/MyUserControl.ascx");

The same applied for a control dropped on a page. Add the tilde to the declarative path of the user control in the aspx page.

We can call this as a bug in VS2005 and is fixed in VS 2008.

Reply me if this dosen't work or needs more explanation. Alternatively, don't forget to mark this as answer.