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Session Timeout

Dec 29 2011 12:00AM by Vipul

I am using the Crystal Report and I got an Error like this.

System.Web.UI.ViewStateException
Inner Exception Type: System.Web.UI.ViewStateException
Inner Exception: Invalid viewstate.
Inner Source: 
Exception Type: System.Web.HttpException
Exception: The client disconnected.
Source: DefaultPage
Stack Trace: 
   at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)
   at System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState)
   at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString)
   at System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState)
   at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState)
   at System.Web.UI.HiddenFieldPageStatePersister.Load()
   at System.Web.UI.Page.LoadPageStateFromPersistenceMedium()
   at System.Web.UI.Page.LoadAllState()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
   at System.Web.UI.Page.ProcessRequest()
   at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
   at System.Web.UI.Page.ProcessRequest(HttpContext context)
   at ASP.adminfcinvoicereportaspx.ProcessRequest(HttpContext context) in c:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\c86c318b\35f0b30d\AppWebfcinvoicereport.aspx.fdf7a39c.k3etzzhq.0.cs:line 0
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Base Error : Invalid viewstate.

What should I do for this error ?

Submitted under: C#.NET · · · ·

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Vipul

514 · 0% · 71

2 Replies

Try this link

http://stackoverflow.com/questions/576990/should-i-ignore-the-occasional-invalid-viewstate-error

http://support.microsoft.com/kb/829743

commented on Dec 30 2011 4:49AM

Mitesh Modi

18 · 10% · 3078

Hi Vipul,

If you use the CrystalReportViewer control to perform both roles (report display and object model), ViewState persists both of them, and you do not need any additional persistence mechanisms.

Please make sure

-Not Using ViewState Compression
-Not Handling Viewstate optimizations in basepage class
-Page ViewState is enabled

You can also use Session, or Cache as replacement of ViewState

Here is the link

http://msdn.microsoft.com/en-us/library/ms225516(v=vs.80).aspx

commented on Dec 31 2011 5:39AM

Robert Dennyson

11 · 14% · 4419

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