这是什么原因呀？
Server Error in '/' Application.
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The viewstate is invalid for this page and might be corrupted.
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: The viewstate is invalid for this page and might be corrupted.
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): The viewstate is invalid for this page and might be corrupted.]
System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +150
System.Web.UI.Page.LoadPageViewState() +18
System.Web.UI.Page.ProcessRequestMain() +423
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Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573
[用户系统信息]Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)
