[ASP.NET - C# - Ajax] Sys.WebForms.PagerequestManagerServerErrorExceptionerror (12030, 12031 and 121

Discussion in 'ASP .Net' started by francois, Sep 10, 2009.

  1. francois

    francois Guest


    I have an application in asp.net, c# using ajax library and Visual
    Studio 2005 (Framwork 2.0).

    My application has huge pages using update-panels.

    Some times, a javascript popup appears with :

    Sys.WebForms.PagerequestManagerServerErrorException and as error
    code :


    If I don't put update panels, I don't have the problem (But the page
    do synchronous postback).

    What can be the cause of these errors ?
    Is there a solution to catch them and to send the error in an error
    page ?
    francois, Sep 10, 2009
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