Weird Error : Unable to Validate Data in ASP.NET website

added by abhi2434
7/18/2010 1:07:18 PM


Have you ever come across a situation where your website which was working for last couple of months gives a weird error "Unable to Validate Data". Yesterday, while working I found that my website which is already published in IIS throws this error. Initially I thought the error might be with my code, but I found that everything is good with the code. So I looked forward to internet and found that this error comes when the viewstate of a page cannot be decrypted when the response received from the client.