Invalid postback or callback argument on Post back

One of the most familiar error while working on ASP.NET ajax update panels is :- 505|error|500|Invalid postback or callback argument. Event validation is enabled using in configuration or in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally...

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Updating contents of IFrame using JQuery

Now a new challenge !!! Updating the contents of iframe using jquery, sounds easy as jquery by default provides the option as follows:- $("#iframe1").contents() Now that you are able to retrieve the contents, updating data is quite easy. for eg:- $("#iframe1").contents().find("#mydiv").css("background-color","red"); In order to update the contents of #mydiv in iframe1 first iframe1 should be loaded with another page. Its...

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LoadViewState not firing on post back in custom control

Recently started developing a custom control with complex data handling. So far so good. Now lets try adding view state content to the custom control. Oh no! its not working. What's wrong is there a design flaw or some thing overlooked. Have been struggling for quite a decent number of hours to fix this. After revisiting the code and looking into event life cycle for ASP.NET . Ha ha ... yes overlooked a basic detail but have...

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