Following error got on using ajax file upload ,i tried all the mentioned rectification ,like including handlers in web.config ,but still the issue persist
Comments: I also got this error with AJAX Control Toolkit .NET 3.5 but its not with AJAX Control Toolkit .NET 4.0 Try to use it
Comments: I also got this error with AJAX Control Toolkit .NET 3.5 but its not with AJAX Control Toolkit .NET 4.0 Try to use it