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Viewstate Error

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This is a migrated thread and some comments may be shown as answers.
Som
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Som asked on 21 Sep 2009, 06:49 PM
We are using the 2008.1.619.20 version of the Telerik ASP.NET AJAX Controls. We have been getting the following errors on our page that uses the telerik treeview control.

Exception Type:        System.Web.UI.ViewStateException
Exception Message:     Invalid viewstate.


Exception Message:     Unable to validate data.
Exception Source:      System.Web
Exception Target Site: GetDecodedData

Exception Type:        System.Web.HttpException
Exception Message:     The client disconnected.

After doing some research and also searching the telerik forum we set enableViewStateMac="false" and viewStateEncryptionMode="Never" in the web.config file. We also set the maxRequestLength="10000"  for the httpruntime but nothing has helped us with the errors so far. I will greatly appreciate if you help us resolve this issue at the earliest.

Thanks
Som



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Yana
Telerik team
answered on 24 Sep 2009, 09:06 AM
Hello Som,

The provided information is not enough for us to replicate the issue. Could you please open a support ticket and send us a simple page demonstrating the problem there? Thanks in advance

Kind regards,
Yana
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Emmanuel Bougnon
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answered on 29 Mar 2010, 09:34 AM
Hi,

Did you found an issue for this problem, because i have the same error, but i think just when i activate the radCompression.

Thank you
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Rosen
Telerik team
answered on 01 Apr 2010, 07:27 AM
Hello Emmanuel,

Can you please provide a bit more information about your scenario and implementation? Which controls are used, which RadCompression module (http and ViewState), what is the exact error you are getting and when? 

Also the Som's issue cannot be related to RadCompression as in the version of RadControls he is using the module is not present.

Greetings,
Rosen
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Yana
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Emmanuel Bougnon
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Rosen
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