RibbonMenuButton.DropDownOpened 事件

定义

当打开下拉列表时发生。

public:
 event EventHandler ^ DropDownOpened;
public event EventHandler DropDownOpened;
member this.DropDownOpened : EventHandler 
Public Custom Event DropDownOpened As EventHandler 
Public Event DropDownOpened As EventHandler 

事件类型

适用于