共用方式為


RibbonMenuButton.DropDownOpened 事件

定義

發生於下拉部分開啟時。

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

事件類型

適用於