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hi all.
i had an error after using imagebutton the error is:
"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."
may i have answer!!
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1 solution

You can always set enableEventValidation="false" in your page directive. But that has security concerns. Read about it.

This is a common error. Use Google and know about it. Take appropriate steps.
   

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