Commented Issue: ComboBox Selected List Item Outside of Scrollable Area [25589]

As you can verify in the the demo on the toolkit sample page (http://www.asp.net/AJAX/AjaxControlToolkit/Samples/ComboBox/ComboBox.aspx) when you press the down or up arrow and scroll past the bottom or top of the list, the selected item goes outside the scrollable area for a few items before the list refreshes the view. Each time the list is paged the number of items selected outside of the viewable range grows until eventually the currently selected item is completely out of view.

So basically the number of selectable items exceeds the number of items in viewable range. Does anyone have a fix for this?
Comments: This may be related to what I'm seeing: That when typing into the textbox, the matching item in a very large list (>12,000 items in my case) does not appear in the visible dropdown at all. (It is far below the items visible in the dropdown.) This problem seems to defeat the purpose of the control, so I consider its impact to be higher than "Low". I'm using DropDownStyle="DropDownList".