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Using a Timer Control and and UpdatePanel, but I get an error...(see below)...why am I getting this error?

Posted on 2009-05-19
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Last Modified: 2013-12-17
Using a Timer Control and and UpdatePanel, but I get an error...(see below)...why am I getting this error?

Error:

Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 0
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Question by:mmedi005
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Expert Comment

by:_Stilgar_
ID: 24427316
I assume you're getting this in a message box - as in exceptions thrown during an AJAX request. You'll have to execute your app using Visual Studio in Debug mode and track the code after the postback throwing this...
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Author Comment

by:mmedi005
ID: 24431995
how do I do this, set the debug=true in the webconfig or is there another way?
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_Stilgar_ earned 2000 total points
ID: 24432052
No, open the project with VS and press F5. You can set breakpoints in your code, or just wait for an exception to be thrown and not handled, VS will alert you about that.

See for example:
http://www.4guysfromrolla.com/webtech/chapters/VSNETDEBUG/
http://www.devx.com/tips/Tip/18204
http://weblogs.asp.net/lduveau/archive/2007/01/14/debugging-asp-net-ajax-with-visual-studio-2005-and-vista.aspx
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Author Comment

by:mmedi005
ID: 24432121
ok, i'll try that.....

when i set the debug=true...

i got a message box stating: Object reference not set to an instance of an object.

But this does not happen till about 3-5 minutes of the page sitting there.

I'll try the other debug method, but any ideas about why the other message is popping up....
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LVL 14

Expert Comment

by:_Stilgar_
ID: 24432231
Yes, you're not initializing one of your objects.
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