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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Critical Error, Invalid PostbackCritical Error, Invalid Postback
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7/17/2006 3:19 PM
 
ray

Joined: 7/11/2006
Posts: 2

I get the following error when I try certain functions on a specific 3.X DNN portal

Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.

I get this when I try to use file manager to upload a file.  Another user reported the error when attempting to change their password. 

Any thoughts?
 
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7/19/2006 10:55 AM
 
ray

Joined: 7/11/2006
Posts: 2

I tracked it down to a .net 2.0 parameter that does not exist in .net framework 1.1

Now what?

 

Remarks

The default value is true. A Web application can optionally disable event validation to revert to .NET Framework version 1.0 behavior.

The EnableEventValidation attribute indicates whether event validation should be performed.

The base control checks this attribute to determine whether it should validate events. A derived control does not inherit this base control attribute, and so it is exempt from event validation by default.

The user can still instruct ASP.NET to perform event validation on the derived control by adding the EnableEventValidation attribute to the derived control itself and setting it to true.

 
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