private void Playlist_Remove_Button_Click(object sender, RoutedEventArgs e)
        {
            SelectListDialog win = new SelectListDialog(
                "Remove playlist",
                "Remove",
                "Playlists",
                musicPlayer.Playlists);

            if(win.ShowDialog() == true)
            {
                Playlist list = win.SelectedItem as Playlist;
                musicPlayer.Remove(list);
            }

            RefreshView();
        }