ComboBox - ASP.NET AJAX

ComboBox control fully compatible with Microsoft's AJAX Library and ASP.NET 2.0 AJAX Extensions (formerly 'Atlas') - the most advanced AJAX framework.

ComboBox supports autocomplete functionality - you can set a poll-server timeout and the combobox fires a server-side event that returns all the relative matches for the currently typed text. You can easily select an entry or re-request more entries. This example shows auto-complete from a flat text dictionary file.
 


MinimumPrefixLength:  		   To start a search in the English dictionary you can type a part of a word in ComboBox or press the arrow to see the first entries.

MinimumPrefixLength propery sets the minimum length of the string which will initiate items request.