private void ContentFrame_Navigated(object sender, NavigationEventArgs e)
{
if (e.SourcePageType() == typeof(SettingsPage))
{
NavView.SelectedItem = NavView.SettingsItem;
}
else
{
NavView.SelectedItem = NavView.MenuItems.OfType <NavigationViewItem>().FirstOrDefault(x => GetPageType(x) == e.SourcePageType());
}
}
