partial void DeletePhong(Phong instance);
partial void UpdatePhong(Phong instance);
private void detach_Phongs(Phong entity)
{
this.SendPropertyChanging();
entity.LoaiPhong = null;
}
partial void InsertPhong(Phong instance);
private void attach_Phongs(Phong entity)
{
this.SendPropertyChanging();
entity.LoaiPhong = this;
}