<p>I use the Autocomplete extender feature to get the list of suggestions from my database. There is no scroll bar for this control, so I have added a scroll bar in a panel (MS .net 2.0) which i attach to my autocomplete extender.Now the issue is with the srcoll bar.
like this </p>

<pre><code>&lt;asp:Panel ID="autocompleteDropDownPanel" runat="server"  ScrollBars="Auto"  Height="100px" HorizontalAlign="Left" /&gt;
</code></pre>

<p>and add it to autocompete extender  like this </p>

<pre><code>:CompletionListElementID="autocompleteDropDownPanel"
</code></pre>

<p>When I call my page, I get the list of suggestions and the scroll bar appears. When I click on scroll bar or try to drag, everything just disappears.</p>

<p>Am i doing something wrong? Is there any other way to add a scroll bar to my autocomplete extender control</p>

<p>Any hints would be very helpful.</p>

This does not directly answer your question - but I would ask if you're sure that the autocomplete extender is the best control to be using in this scenario.
From a usability perspective the great thing about autocomplete is that I can type a 3-4 characters, see a few available inputs and easily select them using the keyboard using a few down-cursor keypresses.
If you are displaying more items in the autocomplete list than can be easily viewed on screen then I'm not sure that the fix is to add a scrollbar.
In our scenario we had a list of 2800 names that were available in the autocomplete. We limited the number shown to 20, but set the
```
MinimumPrefixLength
```
to 1. This meant that when the user typed one character they would see an autocomplete list that effectively just lets them know that the textbox they're typing in has this ability. The list of results in the list only becomes really useful once the user has entered 3-4 characters though.