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Asp.net Unable To Validate Data Machinekeysection.getdecodeddata

Chris GetDecodedData Reply Dude-man None 0 Points 9 Posts Re: System.Web.HttpException: Unable to validate data. In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter By subscribing, you agree to the privacy policy and terms Not the answer you're looking for? Privacy Policy Support Terms of Use

This could happen if you are using a web farm (load balanced web servers) or the user kept the page open for a long duration.Give fixed value in machine Key section The interesting thing is the key gets regenerated after a certain time. I didnt came across this very recently. That was valid at that time and it is still valid if you are still using these versions. http://stackoverflow.com/questions/140303/asp-net-unable-to-validate-data

I think the bug (if you can call it one) is actually in IIS, not ASP.NET. An Array of Challenges #2: Separate a Nested Array "Weird" topology errors in QGIS How are research assistantships for international graduate students funded in the US? And in JavaScript, I submitted the form (theForm.submit();) I think in my case it was a security issue, and that you can't change this after it's already been set on the

My question is: Are you using Threads on the web app, if you do so, remove them and you won't get that error. asked 6 years ago viewed 2570 times active 5 years ago Blog Stack Overflow Gives Back 2016 Developers, Webmasters, and Ninjas: What’s in a Job Title? Let me know if you want anything more on this topic to enhance. My solution was to move the ViewState to the top of the form (extended the Page class and overwrote the Render method for pre-3.5 SP1, or .Net 3.5 SP1 and later

Reply dgarcia59 None 0 Points 20 Posts Re: System.Web.HttpException: Unable to validate data. Explain it to me like I'm a physics grad: Global Warming Is there a risk connecting to POP3 or SMTP email server without secure connection? Other potential causes: An application pool recycling between the time the viewstate was generated and the time that the user posts it back to the server (unlikely). http://stackoverflow.com/questions/2656636/unable-to-validate-data-at-system-web-configuration-machinekeysection-getdecode i didn't twig the problem from reading his post first time...

If a user stops a post back (usually by hitting the back button or stop button in the browser), not all the data is sent back to the server. The site is not hosted within a webfarm. 2 pages seem to cause this error intermittently and one of them stores a bool in the ViewState, but it is not modified This is not a direct answer to your question, but I wanted to share this little piece of information. Sign In·ViewThread·Permalink Note Sourav_9i13-Nov-09 1:11 Sourav_9i13-Nov-09 1:11 Good Finding..

Browse other questions tagged c# web-config sha1 machinekey or ask your own question. https://forums.asp.net/t/1063094.aspx?System+Web+HttpException+Unable+to+validate+data+ I have forgotten what the puzzle was more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback I've searched around but can't find the cause. When ASP.NET validates the viewstate, it fails.

That fixed the issue for me –WhoCares Aug 1 '14 at 19:47 add a comment| up vote 2 down vote I found that when the local security policy for "System crytography:use Why did Vader dislike Krennic? Jan 13, 2007 06:11 PM|bojan.jovicic|LINK Here is the ASP.NET code for GridView used in this page:

changing location of texmf folder for use across multiple computers (OS X / Apple) Big O Notation "is element of" or "is equal" Can the product of two nonsymmetric matrices be Member 4 Points 23 Posts Re: System.Web.HttpException: Unable to validate data. Anyone have any ideas? Are the mountains surrounding Mordor natural?

Did Donald Trump say that "global warming was a hoax invented by the Chinese"? When ASP.NET validates the view state, it fails. Jun 20, 2007 02:34 AM|bojan.jovicic|LINK Hi sili18, I still haven't investigated this problem further.

Thanks for the tip. –Dylan - INNO Software Oct 3 '12 at 23:11 add a comment| up vote 3 down vote Try adding a machine key to your web.config to see

I haven't posted this question before. My problem resolved by adding EnableViewStateMac=True Shan -- Is that all you had to do to fix this error in your code? It could be that the problem existed before 2.0 was released or heavily used, and this article was never updated, but I can't say that for sure. I keep getting this error from different IPs a few times a day System.Web.HttpException: The client disconnected. ---> System.Web.UI.ViewStateException: Invalid viewstate.

Reply lflewwelling Member 10 Points 6 Posts Re: System.Web.HttpException: Unable to validate data. Question has a verified solution. its giving this error Invalid_Viewstate_Client_Disconnected Client IP: Port: 2235 User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1) ViewState: If youwould havegot the solution please share Please advise.

see the stack trace below.

 [HttpException (0x80004005): Unable to validate data.] System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, IVType ivType, Boolean useValidationSymAlgo, Boolean signData) +1008 System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean System.FormatException: Invalid character in a Base-64 string. share|improve this answer answered Aug 23 '11 at 3:31 Todd 23333 add a comment| up vote 3 down vote "a postback is stopped before all the viewstate loads" I've had this Then I tried the below. 1) disabled the viewstate through out the site, and the error still remained there.2) added the IIS-generated keys directly to the web.config, restarted IIS, and the 

Sep 08, 2008 09:32 AM|shantanushukla|LINK Link does not exist... Jan 22, 2008 02:52 PM|dgarcia59|LINK Since this exception doesn't negatively affect the customer's experience, is there somewhere I can easily catch the exception and let it die silently? Wherever the view state variable carries some value, those pages displayed this weird error. If the full postback isn't received, IIS shouldn't forward the request to ASP.NET.

Get the weekly newsletter! Have any problem? at System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) I'm getting this error on a postback of .Net 2.0 aspx page. we are using 2.0 at the moment, but that is good to know. –wprl Oct 31 '08 at 21:10 add a comment| up vote 6 down vote I've experienced the issue

Member 4 Points 23 Posts Re: System.Web.HttpException: Unable to validate data. Connect with top rated Experts 16 Experts available now in Live! at System.Convert.FromBase64String(String s) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) at System.Web.UI.Util.DeserializeWithAssert(IStateFormatter formatter, String serializedState) at System.Web.UI.HiddenFieldPageStatePersister.Load() –Ben Williams Apr 17 '10 at 21:14 Do you have ELMAH setup? Jun 05, 2008 06:09 AM|Askashok.jha|LINK If ASP.NET cannot validate View State, ASP.NET returns a message to the client browser that states that "view state is invalid for this page and might

share|improve this answer answered Nov 11 '15 at 19:39 n0rd 4,59821835 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign I know that some of you may not use the above module, and still get this error, which implies that the cause is something else.