When you open a page that contains numeric data in the View State, if the numbers are very small, for example five places past the decimal place (0.00004) you recieve a View State error message similar to the following:
Server Error in '/vState2' Application. -------------------------------------------------------------------------------- The View State 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 View State 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 View State is invalid for this page and might be corrupted.] System.Web.UI.Page.LoadPageStateFromPersistenceMedium() +150 System.Web.UI.Page.LoadPageViewState() +16 System.Web.UI.Page.ProcessRequestMain() +421
This problem occurs because the .NET Framework converts small numbers in the View State to Scientific Notation. When the .NET Framework tries to deserialize the number, it cannot recognize the number or the number is not the expected data format.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework 1.0 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question. The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.