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View State Error

is equivalent to "enableViewStateMac='true'"! (by default, implicitly). For more information about this issue, click the following article number to view the article in the Microsoft Knowledge Base: Do not store dynamically generated types in view state in Posted on 8/18/2010 6:47:07 AM by selcuk yazar # Sorry,I took this if statement from my logger code. _app is HttpContext.Current.ApplicationInstance. Feb 14, 2010 01:00 PM|Sharru|LINK Added the machine key to machine.config.

i already posted my qn keep in the value in textbox under postback? The browser then sends the field back to the server on the next request. All rights reserved. Rick Strahl July 20, 2005 # re: Invalid ViewState Just an update - turning EnableViewStateMac off on the page fixed the problem as far as I can see.

I wonder if a user perhaps was previously logged in, and as their session timed out, the system used a response.redirect to put them on the login page, and maybe that Jan 31, 2010 04:34 PM|Sharru|LINK maybe this is IE84k bug? Jan 25, 2010 10:12 AM|Sharru|LINK qwe123kids Hi, U may Share machince key.. See these posts for support: share|improve this answer answered Aug 19 '09 at 14:19 Tom Halladay 3,41233046 add a comment| up vote 1 down vote There's not much you

My web.config is very simple as below. The website hanged! Why was Vader surprised that Obi-Wan's body disappeared? Now we have removed that update panel and placed a separate update panel inside each tab panel.

didn't help at all . If user close their browser and hit the page again, it should have no viewstate information. An alternative fix to avoid this problem is to move the types that you are storing in view state into a precompiled assembly, either in your Bin folder or in the Not the answer you're looking for?

If you have user authentication you should also set a ViewStateUserKey to guard against CSRF. –blowdart Aug 27 '09 at 6:06 add a comment| up vote 5 down vote One issue How to restrict InterpolatingFunction to a smaller domain? I'm not sure if its manifesting in the same form as yours but here are some things I have picked up on: 1. But then page does not get postback event for first time.

Reply anujtripathi Contributor 2703 Points 606 Posts Re: Invalid viewstate - AGAIN. Bruce, Apr 26, 2006 #3 bdwest Bruce, Any ideas as what may not like. Consider making a small donation to show your support. Using "están" vs "estás" when refering to "you" How or where should I add a required connection string for a feature in Helix?

I think we should take a look at this bug shown by Microsoft: I think that will provide you the idea to resolve this issue. Morgan Belford July 29, 2005 # re: Invalid ViewState Safari, through version 2.0, has a problem with ViewState. Now, this can be dangerous, but if I'm convinced that the data wont change I might move the data into the page as static content (you could wrap it in a Safari users on Mac are getting Viewstate error.

To determine whether you may be running into such an issue, try storing the view state in the session. Truncating the view state causes a "view state corrupted" error message. I have a machingeKey generator at if anyone needs one. The user posts back the page.

I think a defective router would be easy to detect as packets would be corrupt - it rarely happens that the incomplete data makes it through without getting detected as errors. We see this with Safari/417.8 - Safari/417.92 and WebTV/2.5.9 I have yet to find a solution... :( Bruce Hemmerich May 26, 2006 # re: Invalid ViewState Doesn't turning EnableViewStateMac off cause This approach is not 100% secure.3) Configure ASP.NET to not use Auto-Generated Key but rather a predefined key.

reason viewstate was invalid" error be caused by a defective router?

Feb 01, 2010 01:02 AM|anujtripathi|LINK Hi Sharru, I have seen this thread for a period of time, even though I am not sure that I can provide you the excat solution best of luck ramp, Jul 26, 2012 #20 martino DiscountASP.NET Staff Cool thanks for the added information guys. Is the sum of singular and nonsingular matrix always a nonsingular matrix? When the error occurred it always happened on the same page and the same event.

In some cases you might even load data on every visit for the sole purpose of disabling ViewState, and then cache the data on the server instead. Is this really a wide spread problem that exists in any application ? That signature is generated from the machine key for the server. I would suspect other things first.

In this case you'll need to move viewstate out of the page into session state. Thanks Brian ---> System.FormatException: Invalid character in a Base-64 string. OR U may also Disable ViewStateMac thanks qwe123kids , already tried both , didn't make any difference. thanks.

Another word for something which updates itself automatically Seasonal Challenge (Contributions from TeXing Dead Welcome) How do really talented people in academia think about people who are less capable than them? First, As you are running your application on single server there is no need to make enableViewStateMac to false, as it will validate the message with the same key. AutoGenerate cannot be used in a cluster.] > System.Web.UI.ViewStateException.ThrowError(Exception inner, String persistedState, String errorPageMessage, Boolean macValidationError) +106 > System.Web.UI.ViewStateException.ThrowMacValidationError(Exception inner, String persistedState) +14 > System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +242 > System.Web.UI.ObjectStateFormatter.System.Web.UI.IStateFormatter.Deserialize(String serializedState) +4 up vote 47 down vote favorite 34 Every now and then (once every day or so) we're seeing the following types of errors in our logs for an ASP.NET 3.5 application

Invalid length for a Base-64 char array. A Now, please let me know if you are compressing data before assigining it to view state. Here is My web.config

By default, this feature is enabled in the following flag in the Machine.config file.enableViewStateMac="true" The simplest way to determine whether the issue you are dealing with is related to the MAC If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. So assuming you will use the online tool:b) In the online tool, simply click on ?Generate?. Reply anujtripathi Contributor 2703 Points 606 Posts Re: Invalid viewstate - AGAIN.

at System.Web.UI.Page.DecryptStringWithIV(String s, IVType ivType) at System.Web.UI.Page.DecryptString(String s) at System.Web.Handlers.ScriptResourceHandler .DecryptParameter(NameValueCollection queryString) at System.Web.Handlers.ScriptResourceHandler.ProcessRequestInternal (HttpResponse response, NameValueCollection queryString, VirtualFileReader fileReader) at System.Web.Handlers.ScriptResourceHandler. Tweets by @RickStrahl Invalid ViewState July 16, 2005 27 comments Tweet I've been working with a customer who is working with my application as a typical end user would. Usually you don't see Invalid ViewState exception unless you implement some kind of ASP.NET error logger in Global.asax. Or maybe their connection is tempermental and the transfer is interrupted momentarily.Click to expand...

The machineKey node should be within eg. Click to expand... Do normal hyperlink from page1.aspx to page2.aspx (i.e, don't do a postback) 4. c) Copy the content in the textbox into your site?s web.config file. regarding enableViewStateMac, i know it should help , i just tried everything i could find :( Solutions i already tried: Wraping all inline javascript with // Setting enableViewStateMac to false Setting