NavigationService.CanGoBack Property (System.Windows.Navigation)

CanGoBack Property

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This page is specific to

Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

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)

Syntax

Visual Basic

Public ReadOnly Property CanGoBack As Boolean
    Get

public bool CanGoBack { get; }

Visual C++

public:
property bool CanGoBack {
    bool get ();
}

member CanGoBack : bool

Property Value

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

Remarks

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.

Note
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.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

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.

Reference

NavigationService Class

System.Windows.Navigation Namespace

CanGoForward

GoForward