partial void DeleteLoai(Loai instance);
partial void UpdateLoai(Loai instance);
private void detach_Loais(Loai entity) { this.SendPropertyChanging(); entity.ThuongHieu = null; }
partial void InsertLoai(Loai instance);
private void attach_Loais(Loai entity) { this.SendPropertyChanging(); entity.ThuongHieu = this; }