public MainWindow() { InitializeComponent(); //musicCollection = new MusicCollection(); playlistCollection = new PlaylistCollection(); //XmlLoader<Song> readSongs = new XmlLoader<Song>(fileSongs); //musicCollection.songs = readSongs.GetItems(); XmlLoader <Playlist> readPl = new XmlLoader <Playlist>(filePlaylists); playlistCollection.playlists = readPl.GetItems(); PlaylistsPanelRefresh(playlistCollection.playlists); selectedPlaylist = playlistCollection.playlists[0]; PlaylistInfoShow(selectedPlaylist); if (playlistCollection.playlists.Count > 0) { MusicListViewRefresh(playlistCollection.playlists[0].Songs); } myPlayer = new MyPlayer(); }