除了简单的命令列表之外，还可以使用menu元素创建工具栏或弹出式上下文菜单，这需要将type属性设置为toolbar或popup。

In addition to simple lists of commands, you can use the menu element to create a toolbar or pop-up context menu by setting the type attribute to toolbar or popup.

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有时，当您希望能够将一个选择列表显示为一个弹出式菜单而不用创建一个弹出式菜单时，可以使用PopupList控件做到这一点。

There are times when you want to have the ability to display a list of choices as a pop-up window without creating a pop-up menu. The PopupList control can be used to do this.

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