mouse-snip (Methods).cs

private void OnNavigated(object sender, NavigationEventArgs e)
{
  // Each time a navigation event occurs, update the Back button's visibility
  SystemNavigationManager.GetForCurrentView ().AppViewBackButtonVisibility =
  ((Frame)sender).CanGoBack ?
  AppViewBackButtonVisibility.Visible :
  AppViewBackButtonVisibility.Collapsed;
}

private void RootFrame_PointerPressed(object sender, PointerRoutedEventArgs e)
{
  Frame rootFrame = Window.Current.Content as Frame;

  if (e.Pointer.PointerDeviceType == Windows.Devices.Input.PointerDeviceType.Mouse)
  {
    var properties = e.GetCurrentPoint(rootFrame).Properties;
    bool backPressed = properties.IsXButton1Pressed;
    bool forwardPressed = properties.IsXButton2Pressed;
    
    if (backPressed ^ forwardPressed)
    {
      if (backPressed && rootFrame.CanGoBack)
      {
        rootFrame.GoBack();        
      }
      if (forwardPressed && rootFrame.CanGoForward)
      {
        rootFrame.GoForward();
      }
      
      e.Handled = true;
    }
  }
}

private void OnBackRequested(object sender, BackRequestedEventArgs e)
{
  Frame rootFrame = Window.Current.ContentasFrame;

  if (rootFrame.CanGoBack)
  {
    e.Handled = true;
    rootFrame.GoBack();
  }
}