Version

showDropDownButton Property

if false, the dropdown button will be hidden and the input box will be the only visible element where filtering can be done indicates whether dropdown button will be shown or not
Syntax
ASP.NET Ajax Javascript (Specification) 
function get_showDropDownButton() : Boolean
ASP.NET Ajax Javascript (Usage) 
var resultVar = instanceOfWebDropDown.get_showDropDownButton();
See Also