Question

How can I get name of file that generates exception.

ex.
addUser.aspx

try
{ 
    SaveUser(); 
}
catch (Exception ex)
{
    response.wrhite(ex.GETPAGE().toString());
}

return addUser.aspx;

Answer 1

Unfortunately, the Exception class does not have any information regarding what you are looking for. As Yahia notes here, you can get the class name from the Exception, but as you have found, that does not really help for finding the ASPX path.

The best thing to do is to use the Request.Url.ToString() method from inside your exception handler, as Graham notes. Since your code is running from inside the ASPX.cs related to your page, the Request object is available for this.