Content Model: Menu is a ItemsControl. Its content properties are Items and ItemsSource. For more information on the content model for Menu, see Controls Content Model Overview.
The Menu control presents a list of items that specify commands or options for an application. Typically, clicking an item on a menu opens a submenu or causes an application to carry out a command.
An item in a menu can be anything that can be added to an ItemCollection. The MenuItem is the most common type of item in a Menu. A MenuItem can contain child items. The child items will appear in a submenu when the user chooses a parent MenuItem.
Dependency properties for this control might be set by the control’s default style. If a property is set by a default style, the property might change from its default value when the control appears in the application. The default style is determined by which desktop theme is used when the application is running. For more information, see Themes.