>Hi all,
>
>I have an Update Panel with many controls in it. Initially the Postback is fast enough, but after adding many records into the tables and bind to the dropdownlists, the Postback of the page become very slow. Any idea to solve this problem?
>
>Kindly advise, thanks.

How many records are in the table you are binding to this dropdownlist? Are they being processed also? Typical usage of a dropdown list would not be very many records and should not cause this problem. Can you give more insight into where this data is coming from and how many records. Is this standard data binding?
Tim