Gets a value that indicates whether there is at least one entry in the back navigation history.
Assembly: System.Windows.Controls.Navigation (in System.Windows.Controls.Navigation.dll)
The following example shows buttons within a Silverlight page that allow forward and back navigation. The page uses the NavigationService property of the Page class to access the navigation service used by the hosting frame.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.