Friday, April 24, 2009

Error on event validation

Error :
Invalid postback or callback argument. Event validation is enabled using 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.


Solution : If there is a part of the code where repeater is used, DO NOT bind data on pageload (ispostback) section.
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