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troubleshooting Question

Failed to load viewstate if i leave the page as it is for a few minutes

Avatar of daphneySG
daphneySG asked on
Web DevelopmentC#Microsoft SharePoint
3 Comments1 Solution1710 ViewsLast Modified:
Will always get this error when i leave the page "on" for too long...
Any advice?

Failed to load viewstate.  The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request.  For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.HttpException: Failed to load viewstate.  The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request.  For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.  

Stack Trace:


[HttpException (0x80004005): Failed to load viewstate.  The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request.  For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.]
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +310
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Control.LoadChildViewStateByID(ArrayList childState) +118
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +238
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Control.LoadChildViewStateByIndex(ArrayList childState) +136
   System.Web.UI.Control.LoadViewStateRecursive(Object savedState) +224
   System.Web.UI.Page.LoadAllState() +439
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1092