public bool DeletePlaylistSong(int playlist, int song) { DBMusicDataContext db = new DBMusicDataContext(); playlistsong songplay = db.playlistsongs.FirstOrDefault(x => x.playlistid == playlist && x.songid == song); if (songplay == null) { return(false); //không tồn tại false } db.playlistsongs.DeleteOnSubmit(songplay); db.SubmitChanges(); return(true); }
public Boolean InsertNewPlaylistSong(int playlistid, int songid) { try { DBMusicDataContext db = new DBMusicDataContext(); playlistsong playlist = new playlistsong(); playlist.playlistid = playlistid; playlist.songid = songid; db.playlistsongs.InsertOnSubmit(playlist); db.SubmitChanges(); return(true); } catch { return(false); } }