Gets a value that indicates whether there is at least one entry in back navigation history.
Assembly: PresentationFramework (in PresentationFramework.dll)
to determine whether there is at least one entry in back navigation history. This property should be inspected before calling GoBack; if GoBack is called and there are no entries in back navigation history, an InvalidOperationException is thrown.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.