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I hope that it will help others too. I tried all the solutions given Reply ASP.NET Debugging says: May 2, 2008 at 3:07 pm Jai, Is it a large page? So I also added this to your array and the issue seems to be resolved. This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Top Experts Last 24hrsThis month Jochen Arndt 225 Richard Deeming 190 Source

Reply David Grey's Blog says: March 22, 2008 at 5:52 pm Tess's If broken it is, fix it you should blog is always good for a read. Solution 2 Accept Solution Reject Solution Validation of viewstate MAC failed. It is a web form on asp.net. –AskYous Apr 19 at 22:21 Does not working at mine –toha Aug 30 at 7:32 add a comment| up vote 2 down I have no luck in resolving this error Reply ASP.NET Debugging says: April 1, 2009 at 9:28 pm Apps, Do you know what the situation is around when you get the

Validation Of Viewstate Mac Failed .net 4

Admin Technomark 160 views 32:02 Part 85 Enable client side validation in asp net mvc - Duration: 8:11. it tried your method but it pops a javascript error. The Friendly Menu Adapter is also working again by doing this. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm.

Blog Sign in Join ASP.NET Home Get Started Learn Hosting Downloads Community Overview Community Spotlight Articles of the Day What's new Community Blogs ASP.NET Team Events Hall Of Fame MSDN Samples Watch QueueQueueWatch QueueQueue Remove allDisconnect Loading... I have vs 2008 sp1 for asp.net. Validation Of Viewstate Mac Failed Load Balancer Reply Boomport says: April 16, 2008 at 12:33 pm This solved the problem for me, This is caused by the application pool setting on the performance tab, web garden.

Using the shortcut <%= %> fixes .aspx files (which i should have been using anyways), but I havent found a solution yet for using Response.Write in codebehind. Validation Of Viewstate Mac Failed Solution If you aren't using state, that would make the page much smaller also. Thanks Tom. Otherwise, I don't know of a way without code changes.

But now if the user click on teh back button a couple of times he gets this error "Validation of viewstate MAC failed error" Thsi does not happen on the workstation. Httpexception (0x80004005): Validation Of Viewstate Mac Failed Reply Wendell says: September 7, 2009 at 3:36 am Everything that was posted here did not solved the issue. Close Learn more You're viewing YouTube in English (UK). Solution 3 Accept Solution Reject Solution adding the below code in the web.config had fixed the issue for me. Permalink Posted 10-Dec-12 17:51pm Fenil Desai1.1K Updated 10-Dec-12 17:52pm

Validation Of Viewstate Mac Failed Solution

Do you need your password? http://www.codeproject.com/Questions/321511/Validation-of-viewstate-MAC-failed?cmt=211373 Reply patibandha says: August 4, 2009 at 6:37 am we are getting this error in Chrome only.. Validation Of Viewstate Mac Failed .net 4 A production server? Validation Of Viewstate Mac Failed Error Solution So, I'm going to add the following line of code in my base page: Response.Cache.SetNoStore() I'm doing this already on pages that require session context.

Advertise | Privacy | Mobile Web02 | 2.8.161027.1 | Last Updated 18 Dec 2015 Copyright © CodeProject, 1999-2016 All Rights Reserved. Permalink Posted 6-May-14 19:49pm RajeeshMenoth7.3K Comments sanket saxena 7-May-14 2:24am very late man Jamsheer Moideen 6-Feb-16 2:53am I did this but got the following error The May 12, 2009 07:35 AM|suryabeniwal|LINK try to add this string in section of your web.config file : for fix "Validation of viewstate MAC failed" If this application is hosted by a Web Farm or cluster, e... Validation Of Viewstate Mac Failed Single Server

I've written a small class called BasePage that fixes those issues and improves the performance a little bit. Reply ASP.NET Debugging says: May 15, 2008 at 10:05 am Chris, I don't see any problem with that. The problem happens specifically when you postback before the EventValidation field has been rendered. http://opensofts.org/viewstate-mac/viewstate-mac-failed-error.php If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm.

Storing viewstate in session has good and bad about it, but if you can handle the additional memory on the server, it will work very well and also allows for smaller Generate-machinekey After he submits that page he is redirected to the first page with th erefresh meta tag. It isn't updated for 3.5 yet but I imagine it will be soon….

In our DEV machine it was working fine.

However, something the client said about leaving the page open for a while and returning later to click on a link was triggering the error. I have a site with a master page and a form page, my form is nothing but a simple user registration, I have no grids or large controls. Solution for ML8 and older: This could be due to the hosting environment. Validation Of Viewstate Mac Failed Localhost Another way around the problem is to mark the form as disabled and then enable it in script once the load is complete: function enableForm() { document.getElementById("form").disabled = false; } window.onLoad

Thanks Reply Thomas says: April 3, 2008 at 7:23 am A common thread in this is problems with the Viewstate in a hidden field - we use Infragistics GridView controls and My issue kept coming back whenever I upgrade to .NET 2.0 SP2. The bottom line was that I was able to get .NET frameworks for 2.0, 3.0 and 3.5 that kept my page working by installing .NET 3.5 (NOTE: NO SERVICE PACK). Check This Out but only on chrome if i use history back btn then i execute the page..

Please read the following for further explanation, iis.net/learn/manage/configuring-security/… –Carlosfocker Feb 14 '13 at 20:24 This didn't solve the problem –Esen Feb 19 '15 at 0:49 add a comment| up Powered by the AspDotNetStorefront Shopping Cart Software, (ML v9.3.1.1/asp.net 3.5).Patent Pending. If this application is hosted by a Web Farm or cluster, ensure that machineKey configuration specifies the same validationKey and validation algorithm. Afret that i start facing the above prob().

Sign in to report inappropriate content. I have followed the different advices, the EnableViewStateMAC etc... Terms of Service Layout: fixed | fluid CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100 Remind me later Review A privacy reminder from YouTube, a Google The way it was before, I was using using System.Threading; and had many threads open.

General FAQ Ask a Question Bugs and Suggestions Article Help Forum Site Map Advertise with us About our Advertising Employment Opportunities About Us Ask a Question All Questions All Unanswered FAQ Someone at MS needs to pull their forearm out of their backside and do some proper research into this and get it fixed. Reply ASP.NET Debugging says: May 8, 2008 at 4:11 pm Martin, What is the error you are seeing? How I fixed the "Validation of viewstate MAC failed" error on Shared Hosting: I used the Generator Tool to generate a machine key I added the machineKey element to my

So I eliminated the bottleneck in my program, and voila!-like magic the error disappeared! Maybe we're fixing here that was not the main issue at all? Its occurred in localhost a handful of times. You can try disabling viewstate if it is 2.0 and just use controlstate.