IApplicationBar.IsMenuEnabled Property
July 26, 2012
Gets or sets a value that indicates whether the user sees the (optional) menu items when they click the ellipsis to expand the Application Bar.
Assembly: Microsoft.Phone (in Microsoft.Phone.dll)
In addition to the icon buttons, you can add one or more text-based menu items. These items are displayed in a list that slides up from underneath the icon buttons when the user clicks the ellipsis. The menu items are used for application actions that are less frequently used, or for actions that are difficult to convey with only an icon. For more information, see Application Bar Overview for Windows Phone.