The Application Bar provides access to the Windows Phone app menu. By default the bar contains a set of icon buttons for accessing the most important functionality. Clicking the ellipsis as the right of the bar expands it into a list menu (if defined). The application bar also has a minimal mode, which provides only the ellipsis. This is useful for apps where there are no “key” menu options.
The article extends content on MSDN with concrete examples and a downloadable source code example.
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