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. FWIW, I'm not running a web farm. Join them; it only takes a minute: Sign up ASP.NET: Unable to validate data up vote 10 down vote favorite 11 What is the cause of this exception in ASP.NET? Jun 27, 2008 01:45 PM|lflewwelling|LINK I was able to reproduce the error by clicking a linkbutton in a repeater followed by quickly clicking the browser's back button. http://wx2me.com/unable-to/server-returned-error-unable-to-scan-home-maildir.php
Grab it now !!! Thank you. -- Mark Kamoski n/a Reply mkamoski Participant 1627 Points 1559 Posts Re: System.Web.HttpException: Unable to validate data. Pages Home About Me My Skills Achievements People I Admire My Publication Frequently Asked Questions About Me Abhishek Sur Microsoft MVP, Client App DevCodeproject MVP, Associate | Dotnetfunda MVP | In it, you'll get: The week's top questions and answers Important community announcements Questions that need answers see an example newsletter Related 11Strange unhandled exception from asp.net application - Validation of
As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged Site Changelog Community Forum Software by IP.Board Sign In Use Facebook Use Twitter Need an account? asp.net visual-studio-2010 iis share|improve this question edited Jan 25 '12 at 21:00 Michiel van Oosterhout 17.5k1265109 asked Jan 25 '12 at 20:52 Tony_Henrich 11.8k43152272 add a comment| 3 Answers 3 active
The only thing I am directly usingViewState for is for PageIndex. If a user stops a postback (usually by hitting the back button or stop button in the browser), not all the data is sent back to the server. In the past I tried everything (including the solution proposed by Jeffaxe, above) but with no result, and I didn't want to set enableViewStateMac="false" (as Raelshark mentions above) to my page, Asp Net Membership Getpassword Unable To Validate Data Read Disclaimer Notice 5 comments: ayan said...
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). Asp.net Unable To Validate Data When I used "normal" links (instead of the SEO-friendly links) the problem disappeared! Jan 13, 2007 06:11 PM|bojan.jovicic|LINK Here is the ASP.NET code for GridView used in this page:
I was using some SEO friendly links and that was causing the ViewState validation failure. Asp.net Machinekey Reply dgarcia59 None 0 Points 20 Posts Re: System.Web.HttpException: Unable to validate data. My Situation: I came across this issue in a Security-Tightened-customer's IIS Server and am supposed to install my asp.net based application (custom user authentication where username and password will be in February 8, 2010 at 8:58 AM Post a Comment Please make sure that the question you ask is somehow related to the post you choose.
[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) +4308283 System.Web.UI.Page.EncryptStringWithIV(String s, IVType ivType) +155 System.Web.Handlers.AssemblyResourceLoader.FormatWebResourceUrl(String Jan 13, 2007 04:55 PM|albertpascual|LINK I believe I have seen your post before asking the same question. Unable To Validate Data Encryptordecryptdata Have any problem? Unable To Validate Data Machinekey Subscriptions allow us send you email notifications when new content is added.
Do you think that setting ViewState key in machine.config will help (I amusing hosted environment, sothis willrequire theirintervention)? http://wx2me.com/unable-to/setup-was-unable-to-create-the-directory-error-5.php In the To field, type your recipient's fax number @efaxsend.com. Source Error: An unhandled exception was generated during the execution of the current web request. Therefore when the user returns the viewstate, if the machine identified key is changed, the decryption of viewstate fails and thus throws this nasty error. System.web.configuration.machinekeysection.encryptordecryptdata(boolean Fencrypt
Has anyone come across this before? General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Articles » General Programming » Bugs & Workarounds It covers Debugging, Testing, Extensibility, WCF, Windows Phone, Windows Azure and many more... get redirected here It is the primary Data object for any WPF lis...
Subscriptions allow us send you email notifications when new content is added. Generate Machine Key Covered by US Patent. But still the error.Finally I have used "EnableViewStateMac =false" in pages section.
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Should I use the formal form (~ます) on the buttons of an app? deleting folders with spaces in their names using xargs I came from a distant land Should I use the formal form (~ます) on the buttons of an app? Subscribe Oops, something didn't work. This Implementation Is Not Part Of The Windows Platform Fips Validated Cryptographic Algorithms. Here is relevant information for my situation: I am not usingfarm environment.
Apr 28, 2010 02:42 PM|asgradl84|LINK Thanks a lot for this response ctsears. This exception is being thrown in extremely simple and small webforms. share|improve this answer answered Oct 31 '08 at 19:08 Jeffrey Harrington 1,28211023 thanks for the info. useful reference 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 have checkedearlier threads about this problem,and tried several things, but to no avail.
its giving this error Invalid_Viewstate_Client_Disconnected Client IP: 18.104.22.168 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 Therefore when the user returns the viewstate, if the machine identified key is changed, the decryption of viewstate fails and thus throws this nasty error.SolutionThe solution is simple. Why is my e-mail so much bigger than the attached files? Sep 25, 2007 08:32 AM|tim_mackey|LINK ctsears has it right.
I can hit my login page fine but as soon as I get authenticated and passed through to the portal in my trunk I get the error below. share|improve this answer answered Jul 19 '11 at 19:53 Joey Guerra 37935 You are definitely on to something.