Workaround for ASP.NET AjaxControlToolkit Combo Box issue

ComboBox is one of the exotic controls present in AjaxControlToolkit . But I have come across some problems while using it.

They are :

1. After clearing all the items of Combo Box , the selected item does not get cleared , even after post back.
   
2. Sometimes after binding the data , Combo box is not displaying the first item or It remains blank or It will be displayed only when we move in/out focus in the combo box.
   
   workaround for this is provided in following link
   
   http://www.mindfiresolutions.com/Workaround-for-ASPNET-AjaxControlToolkit-Combo-Box-issue-832.php
   
   cheers
   samitha