private void detach_ChiTietPhongs(ChiTietPhong entity)
{
this.SendPropertyChanging();
entity.KhachHang = null;
}
partial void DeleteChiTietPhong(ChiTietPhong instance);
partial void InsertChiTietPhong(ChiTietPhong instance);
partial void UpdateChiTietPhong(ChiTietPhong instance);
private void attach_ChiTietPhongs(ChiTietPhong entity)
{
this.SendPropertyChanging();
entity.Phong = this;
}