The state information is invalid for this page Error

Rajagopalan R V

Hi Friends ,

Am Getting Following Error on my ASP.NET C# Page Button Click event

The state information is invalid for this page and might be corrupted.

i've Added

if (Request.Browser.Browser == "Firefox")

{
Response.Cache.SetNoStore();

}

And in Web.Config
viewStateEncryptionMode="Never"

then also am getting error what Problem why this error Occuring to me
Regards....,
R.V.Rajagopalan

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Rajagopalan R V11y ago
Hi Mr. Suthish Nair...,

       Thanq For ur Reply the Trace log is Mentioned Below and i've Enabled Event Validation Also then Also am Getting Same Error

Log Entry : 4/27/2015 11:16:39 AM
Error in: http://localhost:1666/Web/Form/Test.aspx
System.FormatException: The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or a non-white space character among the padding characters.
   at System.Convert.FromBase64String(String s)
   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() - mscorlib

Regards....,
R.V.Rajagopalan
Gowtham Rajamanickam11y ago
Microsoft expression: http://www.codeproject.com/Articles/285964/WPF-Webcam-Control
Suthish Nair11y ago
It can be of different reasons. If you share the trace log, then we can have a look. Also, try enabling Event Validation etc, but not recommended. Or do some research on this topic.