Invalid viewstate.

2 posts, 0 answers
  1. Mandar Saoji
    Mandar Saoji avatar
    3 posts
    Member since:
    Jan 2009

    Posted 12 Jul 2010 Link to this post

    Hello Experts,

    I found so many below enteries in my server's Event Log.
    Please let us know what is this and will it affect any further.

    Exception information:
        Exception type: HttpException
        Exception message: Invalid viewstate.

    Event Type: Warning
    Event Source: ASP.NET 2.0.50727.0
    Event Category: Web Event
    Event ID: 1309
    Date:  7/9/2010
    Time:  4:31:51 PM
    User:  N/A
    Computer: zCon-25
    Event code: 3005
    Event message: An unhandled exception has occurred.
    Event time: 7/9/2010 4:31:51 PM
    Event time (UTC): 7/9/2010 11:31:51 PM
    Event ID: 4941ea0cd25f420cbbb8f4161e4e6b0e
    Event sequence: 51426
    Event occurrence: 270
    Event detail code: 0
    Application information:
        Application domain: /LM/W3SVC/1/Root/zCon-9-129229739136548100
        Trust level: Full
        Application Virtual Path: /zCon
        Application Path: C:\Inetpub\wwwroot\zCon.Net\
        Machine name: zCon-25
    Process information:
        Process ID: 4148
        Process name: w3wp.exe
        Account name: zCon\SGupta
    Exception information:
        Exception type: HttpException
        Exception message: Invalid viewstate.
    Request information:
        Request URL: http://zCon-25/Ventures/WebResource.axd?d=qP0xs7JwfD7vLDM_
        Request path: /zCon-25/WebResource.axd
        User host address:
        User: lgant
        Is authenticated: True
        Authentication Type: Forms
        Thread account name: zCon\SGupta
    Thread information:
        Thread ID: 11
        Thread account name: zCon-25\SGupta
        Is impersonating: True
        Stack trace:    at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType)
       at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest(HttpContext context)
       at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
       at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
    Custom event details:

    For more information, see Help and Support Center at

  2. Simon
    Simon avatar
    2281 posts

    Posted 12 Jul 2010 Link to this post

    Hi Mandar Saoji,

    This error may not be directly related to RadControls for ASP.NET AJAX.

    Please see these two threads discussing the same issue in StackOverflow for more information:

    Kind regards,
    the Telerik team
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