dropDownFocusCssClass Property

the css class that will be applied on the control's div when the control has focus indicates the CssClass when the control is focused (applied on the main control DIV)

Syntax

ASP.NET Ajax Javascript (Specification)
function get_dropDownFocusCssClass() : String

ASP.NET Ajax Javascript (Usage)
var resultVar = instanceOfWebDropDown.get_dropDownFocusCssClass();