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RE:Invalid Viewstate error
Forum Post Sep 4, 2011

Hi Juraj, It appear the problem is not gone, It happen sometimes, but not locally on my computer, It happen only on remote machine, Is the machine key config should be set even if i don't use any cluster or web farms ?? Thank you Francis Harvey

RE:Invalid viewstate.
Forum Post Jun 22, 2012

Hello, Please apply the latest hot fix as there were some issues with the 32th hot fix. These issues are mentioned in the comments section under this blog post. Best regards, Boris Pocatko

RE:Invalid viewstate.
Forum Post Jun 25, 2012

Hello, I tried to allow the cookies on the linked page and it seems to be working fine. Could you please let me know what problems do still persist? Best regards, Boris Pocatko

RE:EXCEPTION: The state information is invalid for this page and might be corrupted
Forum Post Nov 12, 2009

Hello. I did not see whole error message or stacktrace, but I far as I know, this issue ordinary happens if somebody do a postback before the whole viewstate of page is loaded, e.g. if viewstate is too long and/or the connection is slow and user submit some button before th...

RE:Invalid Viewstate error
Forum Post Sep 4, 2011

Hi, In older version there was a bug in full page caching which was causing this error. But, in most cases this error is caused by the things described in the error message (machine key configuration and web farms) or if the application is restarted/killed for some reason a...

RE:The state information is invalid for this page, when attempting to save info in a editable textbox or when trying to remove a web part
Forum Post Aug 15, 2013

Hello, This issue usually comes up when postback occurs before the whole viewstate of the page is loaded. It's most likely an issue with custom code somewhere on the page as this is an ASP.NET error, not specific to Kentico. If you are unable to find the cause please give u...

Invalid ViewState on BizForm
Forum Post Jan 14, 2011

I continue to receive this error on our contact us page which has a biz form on it and have no idea on how to fix it. It generates between 20-50 error emails per day for me. Could this be because a bot is trying to submit the form? If so, is there a CAPTCHA webpart that can ...

RE:Invalid viewstate.
Forum Post Jun 27, 2012

Hello, Thank you for that. I've checked your html source code and you have the tags <body>, <html>, <title> defined multiple times, which can cause your issue, since the rendered html is invalid. Could you please try to correct that? Best regards, Boris Pocatko

Steve Moss writes about working with ViewState
Knowledge Base Article Aug 3, 2009

Steve Moss from Appetere Limited is describing in his blog post how to use ViewState on your web site and how to avoid some frequently logged exceptions in event log.

Invalid Viewstate error
Forum Post Aug 28, 2011

Hi Guys, I get error when trying to use search or log to CMSDesk, I use No-IP port 80 redirection to port 8080 and my router Virtual Server feature Everything work when I use localhost, if I use my hostname, it crash... I try to disable my firewall, with no more succ...