partial void DeleteMusicGroupXMusic(MusicGroupXMusic instance);
partial void UpdateMusicGroupXMusic(MusicGroupXMusic instance);
private void detach_MusicGroupXMusic(MusicGroupXMusic entity) { this.SendPropertyChanging(); entity.MusicGroup = null; }
partial void InsertMusicGroupXMusic(MusicGroupXMusic instance);
private void attach_MusicGroupXMusic(MusicGroupXMusic entity) { this.SendPropertyChanging(); entity.MusicGroup = this; }