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 have few dropsdowns and a button in a page.
When i click on that button , i get above exception.
What is the best way to fix this exception?
Please dont give me work around solutions.
I dont want to set enableEventValidation to false in config or at page directive.
any help would be highly appreciated.
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