By default, the AutoSearch property is True. The auto-search feature is is commonly known as incremental search. An incremental search begins searching as soon as you type the first character of the search string. As you type in the search string, the control selects the item  ( and highlight the portion of the string that match where the string (as you have typed it so far) would be found. The control supports 'starts with' or 'contains' incremental search as described in the AutoSearch property of the Column object. Use the AutoComplete property to enable or disable the auto complete feature. Use the MarkSearchColumn property to specify whether the control draws a rectangle around the searching column. Use the EditText property to get the text in the control's label area.

The control highlights the characters as the user types them: