public static void DeleteSong(int playlistID, int songIndex)
{
CPlaylistFile pl = Get(playlistID);
if (pl != null)
{
pl.DeleteSong(songIndex);
}
}
public static void RemoveSongFromPlaylist(int position, int playlistId, int songId)
{
CPlaylistFile pl = CPlaylists.Get(playlistId);
if (pl == null)
{
throw new ArgumentException("invalid playlistId");
}
if (!PlaylistContainsSong(songId, playlistId))
{
throw new ArgumentException("invalid songId");
}
if (position < 0 || pl.Songs.Count <= position ||
pl.Songs[position].SongID != songId)
{
throw new ArgumentException("invalid position");
}
pl.DeleteSong(position);
pl.Save();
}