バージョン

Focus プロパティ (DropDownClientEvents)

シンタックス
'宣言
 
Public Property Focus As String
public string Focus {get; set;}
使用例
WebDropDown1.ClientEvents.Focus = "WebDropDown_Focus"
WebDropDown1.ClientEvents.Focus = "WebDropDown_Focus";
// The client event 'Focus' takes two parameters sender and e
        // sender  is the object which is raising the event
        // e is the DropDownControlEventArgs
        function WebDropDown_Focus(sender, e) {

}
参照