Hi can anyone help me?
i have a application used to ajax enabled website. and there is a button control inside datagrid. when i click on this button i get this error.
"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."
can anyone tell me what is this problem. it wud be very thankful