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July 28, 2014
Occurs when the hardware Back button is pressed.
(in Microsoft.Phone.dll)XMLNS for XAML:
Not mapped to an xmlns.
public event EventHandler<CancelEventArgs> BackKeyPress
<object BackKeyPress="EventHandler<CancelEventArgs>" .../>
Cancelling this event will cancel the default behavior of the hardware Back button that performs backward navigation.
Windows Phone OS
Supported in: 8.1, 8.0, 7.1, 7.0