public LocalSongs()
 {
     InitializeComponent();
     vm = new LocalSongsViewModel();
     this.DataContext = vm;
     //list.ItemsSource = vm.mc.mfiles;
     DG.ItemsSource = Playlist.Loc_Songs;
 }
 private void ShuffleBtn_Click(object sender, RoutedEventArgs e)
 {
     LocalSongsViewModel.Shuffle();
 }