What\'s the difference between AutoPostBack=True and AutoPostBack=False?
AutoPostBack = true permits control to post back to the server. It is associated with an Event.
Example:
The aspx page with the above drop down list does not need an asp:button to do the post back. When you change an option in the drop down list, the page gets posted back to the server.
Default value of AutoPostBack on control is false.