The area at the bottom of the primary application window can be used for a status bar control that is suited for displaying the current state of the window and accompanying actions, background tasks, or some other contextual information.
In this recipe, I will demonstrate how to add the StatusBar control to our WPF application and share some guidelines regarding the implementation and usage of this pattern.
Start your Expression Blend 4 and then select New project... From the dialog that appears, select WPF and then WPF Application. Make sure that Language is set to C# and Version is 4.0. At the end hit OK..