The application bar allows each page in your Silverlight Phone application to display up to four icons along the bottom, and this group of icons can be expanded to display a list of menu commands. This video demonstrates how to uncomment out the Application Bar template on a new Silverlight Phone page, how to add / remove and set the properties of buttons and menu commands, and how to respond to click events for each of those items.
Download the source code in c#
Download the source code in VB.Net
