NavigationService.CanGoBack Property
Definition
Important
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Gets a value that indicates whether there is at least one entry in back navigation history.
public:
property bool CanGoBack { bool get(); };public bool CanGoBack { get; }member this.CanGoBack : boolPublic ReadOnly Property CanGoBack As BooleanProperty Value
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.
