partial void DeleteMG_Song(MG_Song instance);
partial void UpdateMG_Song(MG_Song instance);
private void detach_MG_Songs(MG_Song entity) { this.SendPropertyChanging(); entity.MG_Artist = null; }
partial void InsertMG_Song(MG_Song instance);
private void attach_MG_Songs(MG_Song entity) { this.SendPropertyChanging(); entity.MG_Artist = this; }