public void ExitFullScreen()
{
ApplicationView.GetForCurrentView().ExitFullScreenMode();
_splitView.AnimateDoubleProperty("CompactPaneLength", 0, 48, 250);
_lview.AnimateDoubleProperty("Width", 0, 48, 250);
_commandBarT.ClosedDisplayMode = AppBarClosedDisplayMode.Compact;
_commandBarB.ClosedDisplayMode = AppBarClosedDisplayMode.Compact;
_toggle.Visibility = Visibility.Visible;
_exitFS.Visibility = Visibility.Collapsed;
_panes.Margin = new Thickness(0, 48, 0, 0);
}