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Unable To Validate Data Encryptordecryptdata

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Go to Solution 2 Comments LVL 58 Overall: Level 58 ASP.NET 14 Message Accepted Solution by:amit_g2005-02-19 That happens because the key used to encrypt/decrypt view state got changed. By "hard coding" this value in your web.config, the key that asp.net uses to serialize and deserialize your viewstate stays the same, no matter which server in a server farm picks at System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) at System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) HttpApplication.RaiseOnError => EventHandler.Invoke => Global.Application_Error This is being caught in my global.asax. When I looked at where the error was occurring (Target Site) I found: Unable to validate data at System.Web.Configuration.MachineKey.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) at System.Web.UI.LosFormatter.Deserialize(String input) navigate here

Jan 13, 2007 06:11 PM|bojan.jovicic|LINK Here is the ASP.NET code for GridView used in this page: http://stackoverflow.com/questions/9010096/system-web-httpexception-unable-to-validate-data-error-in-vs-development-serv

Unable To Validate Data Encryptordecryptdata

What game is this? Sep 25, 2007 08:32 AM|tim_mackey|LINK ctsears has it right. Error Source: System.Web Error Target Site: Byte[] GetDecodedData(Byte[], Byte[], Int32, Int32, Int32 ByRef) Post Data VIEWSTATE: /wEPDwULLTE4NTUyODcyMTFkZF96FHxDUAHIY3NOAMRJYZ+CKsnB EVENTVALIDATION: /wEWBAK+8ZzHAgKOhZRcApDF79ECAoLch4YMeQ2ayv/Gi76znHooiRyBFrWtwyg= Exception Stack Trace at System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError)

so what do u think about those pages who give this error? Apr 28, 2010 02:42 PM|asgradl84|LINK Thanks a lot for this response ctsears. All rights reserved.Newsletter|Contact Us|Privacy Statement|Terms of Use|Trademarks|Site Feedback TechNet Products IT Resources Downloads Training Support Products Windows Windows Server System Center Browser   Office Office 365 Exchange Server   SQL Server Asp Net Membership Getpassword Unable To Validate Data Aug 12, 2010 04:16 PM|Dude-man|LINK Server farm?

You might use the AutoGenerate option too to enable/disable autogeneration of key during runtime. Asp.net Unable To Validate Data It choked when decrypting data encrypted by the previous site. It covers Debugging, Testing, Extensibility, WCF, Windows Phone, Windows Azure and many more... Contributor 5578 Points 3355 Posts MVP Re: System.Web.HttpException: Unable to validate data.

That's all that's listed in the Applies to section. Asp.net Machinekey share|improve this answer answered Nov 11 '15 at 19:39 n0rd 4,49321834 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign Kayler Oct 01, 2007 at6:27PM http://support.microsoft.com/default.aspx?scid=kb;en-us;Q312906 Thread Closed This thread is kinda stale and has been closed but if you'd like to continue the conversation, please create a new thread in Do you think that setting ViewState key in machine.config will help (I amusing hosted environment, sothis willrequire theirintervention)?

Asp.net Unable To Validate Data

Word for a German "Ausflugscafé" - a cafe mainly catering to people taking a walk Do set theorists work in T? Visit his Website : www.abhisheksur.com to know more about Abhishek. Unable To Validate Data Encryptordecryptdata If we have ever helped you in the past, please consider helping us. Unable To Validate Data Machinekey Abhishek Sur Don't forget to click "Good Answer" if you like this Solution.Visit My Website-->www.abhisheksur.com Also read my book on all ongoing latest technology .NET 4.5 Expert Cookbook Sign In·ViewThread·Permalink

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. http://internetmairie.com/unable-to/unable-to-stop-the-vmms-service.html Rx IsolatedStorage jquery kinect LOH MEF Memory Allocation Metro multithreading MVP MVVM nameof null condition Online Session Patterns PDC10 Prism push technology Reflection Regex scripting silverlight SOH static class string interpolation How could a language that uses a single word extremely often sustain itself? How do I recursively calculate this equation and generate a list of iteration? System.web.configuration.machinekeysection.encryptordecryptdata(boolean Fencrypt

We're using Rainbow Portal and so there are many websites using the same machine.config / web.config settings and they are fine when logging in, except for this one website. RSS reddit Tweet quantass Oct 01, 2007 at5:24PM Im using ASP.NET v1.1 on IIS6. Grab it now !!! http://internetmairie.com/unable-to/script5007-unable-to-get-value-of-the-property.html I missed this.

Solution The solution is simple. Generate Machine Key Exception Error Message: Unable to validate data. My problem resolved by adding EnableViewStateMac=True Shan -- Is that all you had to do to fix this error in your code?

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

How? No matter what this error doesn't seem to go away. Join them; it only takes a minute: Sign up What does an “Unable to validate data” exception in System.Web.Configuration.MachineKeySection.GetDecodedData indicate up vote 5 down vote favorite I've developed a website testing This Implementation Is Not Part Of The Windows Platform Fips Validated Cryptographic Algorithms. That happens because the key used to encrypt/decrypt view state got changed.

Mar 12, 2010 12:51 PM|Dude-man|LINK System.Web.HttpException: Unable to validate data. Reply sili18 None 0 Points 3 Posts Re: System.Web.HttpException: Unable to validate data. Username Forum Password I've forgotten my password Remember me This is not recommended for shared computers Sign in anonymously Don't add me to the active users list Privacy Policy

DOT weblink Information regarding the origin and location of the exception can be identified using the exception stack trace below.Stack Trace:[HttpException (0x80004005): Unable to validate data.] System.Web.Configuration.MachineKey.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32

The only thing I am directly usingViewState for is for PageIndex. To do this, you need to use the following: You might use this site to Generate your validation key as well.To get deep knowledge on I will try to solve it. try { response.BinaryWrite(file.Bytes); response.Flush(); } catch (HttpException) { // This occurs when someone cancels a file download.

Any ideas on how to resolve it? Member 4 Points 23 Posts System.Web.HttpException: Unable to validate data. All rights reserved. Browse other questions tagged asp.net visual-studio-2010 iis or ask your own question.

Jul 05, 2007 01:51 PM|ctsears|LINK I've seen quite a few people complaining about this error and still haven't seen a good response.There's a lot of talk aboutmachine keys, server farms, Server.Transfer,