public void fillLibrary(List<Playlist> list) { Playlist audio = new Playlist(); Playlist video = new Playlist(); Playlist image = new Playlist(); foreach (Playlist pl in list) { foreach (IMedia m in pl.getPlayList()) { if (m.Type == mediaType.AUDIO) audio.add(m); else if (m.Type == mediaType.VIDEO) video.add(m); else if (m.Type == mediaType.IMAGE) image.add(m); } } }