バージョン

InputMouseDown プロパティ

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

}
参照