Context menu in Windows Store App
What is a Context menu in Windows Store App.
Context menus
Do you remember popup menus in Windows applications?
In Windows 8, the context menu is a popup menu. A context menu shows a list of menu items that have some command/code to execute when an item is selected.
In Windows 8, you can use up to five commands on each content menu, like cut, copy, or open with. This limit keeps the context menu uncluttered, easy-to-read, and directly relevant to the text or object that the commands act on.
Don't use context menus as the primary command interface for an app. That's what the app bar is for.