System.Web.HttpException: Validation of viewstate MAC failed

System.Web.HttpException: Validation of viewstate MAC failed

References

Reference NO 1

http://social.msdn.microsoft.com/Forums/en-US/cd9c5c03-4bf3-472b-814a-cd498b190c57/action?threadDisplayName=validation-of-viewstate-mac-failed-if-this-application-is-hosted-by-a-web-farm-or-cluster-ensure

Reference NO 2

http://stackoverflow.com/questions/15206363/system-web-httpexception-validation-of-viewstate-mac-failed

Reference NO 3

http://www.codeproject.com/Questions/173950/System-Web-HttpException-Validation-of-viewstate-M

Reference NO 4

http://forums.asp.net/t/1355367.aspx/1

Reference NO 5

http://blogs.msdn.com/b/tom/archive/2008/03/14/validation-of-viewstate-mac-failed-error.aspx

Reference NO 6

http://adam.kahtava.com/journal/2009/11/23/how-to-fix-the-validation-of-viewstate-mac-failed-error-aspnet-mvc/

Reference NO 7

http://forums.iis.net/t/next/1172049

Reference NO 8

http://www.asprunner.com/forums/topic/3379-validation-of-viewstate-mac-failed/