Sys.Webforms.PageRequestManagerServerErrorExceptio n Status Code 500

saone

Guppy
Sys.Webforms. PageRequestManagerServerErrorException Status Code 500

Just thought I'd share this gem... I was getting this...

Sys.Webforms. PageRequestManagerServerErrorException: An uknown error occurred while processing the request on the server. The status code returned from the server was: 500

On my ASP.Net 2.0 I had an Update Panel with a Timer, each time it fired I was getting the error.

Totally beat me, so I took out bits and pieces until I found the answer and I was amazed when I found it. Within the form but not in the Update Panel, there was this innocuous piece of HTML code...
<input id="xName" type="hidden" value="Place< br />Name" runat="server"/>

and it didnt like the fact that the value had HTML code inside it. Luckily this was only needed as a field for Javascipt, so I could remove the runat="server" which solved the problem.

Hope this helps... coz it took me ages to find it.
 
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