Form submit validation of viewstate mac failed

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Very frequent error - Validation of viewstate MAC failed

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New Community Website Ordinarily, you'd be at the right spot, but we've recently launched a brand new community website Very frequent error - Validation of viewstate MAC failed. I get hundreds of these errors in my eventlog every day. I did some searching and it seems to be very common with no resolution. Here is a very good post about it , although it says upgrading to. NET 3.

SSRS Validation Of Viewstate MAC Failed

It says: 1. You aren't using a web farm. It appears if you have a large page which loads slowly for any reason. I also found this article on Microsoft about it - it says " Note If you set the value of the aspnet:IgnoreFormActionAttribute key to "false" in the web. NET will honor the "action" attribute of the form. AssemblyVersion : 5.

Solution 2

Yep, same here. Hi guys I have been banging my head with this for few weeks now and have found finally what is causing it. For the benefit of the community and to protect the integrity of the ecosystem, please observe the following posting guidelines: No Advertising. This includes promotion of commercial and non-commercial products or services which are not directly related to DNN. If someone posts about a vendor issue, allow the vendor or other customers to respond. Discussion or promotion of DNN Platform product releases under a different brand name are strictly prohibited.

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No Profanity, Racism, or Prejudice. English language posting only, please. DNN Corp. Home All Forums. Using DNN Platf Rodney Joyce. Timothy Speck. You'd be astonished if you'd get this weird error all of a sudden on a working ASP.

  1. 2009-05-05.
  2. Knowledgebase.
  3. single Validation of viewstate MAC failed / not working.
  4. Validation of viewstate MAC failed.;

Net Framework which has troubled most of the web development masses! By default, ASP. NET validates the contents of viewstate to ensure that it has not been tampered. If this validation test fails, an invalid viewstate exception is thrown. This common errors results specifically from an ASP. When you postback before the EventValidation field has been rendered, this will throw the exception. This feature is implemented by having controls register valid events when they render. Tags: None.

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  • This way the viewstate hidden fields are rendered first before any other controls. Therefore, it minimises the chances of the encrypted viewstate not being available. Comment Post Cancel.