Currently when there is a server error, we only get a message saying Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500.
We need the actual error message.
1 Answer, 1 is accepted
answered on 16 Mar 2009, 07:32 AM
As you may know when an error occurs in the middle of an ajax request, PageRequestManager's object will output the message in an alert. Thus in order to view the error you may need to disable the ajax.
Also you may refer to the following msdn help documents here (under Handling Partial-page Rendering Errors) and here.