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NavigationService.CanGoBack Property

Gets a value that indicates whether there is at least one entry in back navigation history.

Namespace:  System.Windows.Navigation
Assembly:  PresentationFramework (in PresentationFramework.dll)

public bool CanGoBack { get; }

Property Value

Type: System.Boolean
true if there is at least one entry in back navigation history; otherwise, false.

CanGoBack 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.

NoteNote

that if navigation history is shared by multiple navigators (NavigationWindow, Frame), the most recent entry in back navigation history may not have been added by the NavigationService for the current navigator.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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