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Q: 

ASP.NET Controls lose their ID when postback?

I have a usercontrol that contains 2 textboxes.

When the page is postback, the ID of those 2 textboxes disappear? The value stay there when the Ajax is called (ontextchanged). I noticed that the method "LoadPostData" of IPostBackDataHandler is not called after a postback (but only when the Ajax is called).

Any ideas?

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