CanGoBack Property
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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.

System_CAPS_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
Available since 3.0
Silverlight
Available since 3.0
Windows Phone Silverlight
Available since 7.0
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