How do I force full post-back from a button within an UpdatePanel?
Just adding this because nobody else has. It is possible to do this in code-behind in one line of code without any of the above methods. Just put this in page_load:
Visual Basic
ScriptManager.GetCurrent(Me).RegisterPostBackControl(myButtonID)
C#
ScriptManager.GetCurrent(this).RegisterPostBackControl(myButtonID);