.net bugs

Question

how we can remove the exception " Unable to evaluate expression because the code is optimized or a native frame is on top of the call stack " in my application this type exception is occured so how we can handle it

Akhil Mittal · Answer

From  http://support.microsoft.com/kb/312629/EN-US/
If you use the  Response.End ,  Response.Redirect , or  Server.Transfer  method, a  ThreadAbortException  exception occurs. You can use a  try-catch  statement to catch this exception.
The  Response.End  method ends the page execution and shifts the execution to the  Application_EndRequest  event in the application's event pipeline. The line of code that follows  Response.End  is not executed.
This problem occurs in the  Response.Redirect  and  Server.Transfer  methods because both methods call  Response.End internally.
To work around this problem, use one of the following methods: For  Response.End , call the  HttpContext.Current.ApplicationInstance.CompleteRequest  method instead of Response.End  to bypass the code execution to the  Application_EndRequest  event. For  Response.Redirect , use an overload,  Response.Redirect(String url, bool endResponse)  that passes  false  for the endResponse  parameter to suppress the internal call to  Response.End . For example: Response.Redirect ("nextpage.aspx", false);
If you use this workaround, the code that follows  Response.Redirect  is executed. For  Server.Transfer , use the  Server.Execute  method instead.

Akhil Mittal · Answer

I guess you must be using  Response.End ,  Response.Redirect , or  Server.Transfer  somewhere in your code/program .
You might find some answers here. http://support.microsoft.com/kb/312629/EN-US/