partial void DeleteChiTietHDNhap(ChiTietHDNhap instance);
 partial void UpdateChiTietHDNhap(ChiTietHDNhap instance);
		private void detach_ChiTietHDNhaps(ChiTietHDNhap entity)
		{
			this.SendPropertyChanging();
			entity.SanPham = null;
		}
 partial void InsertChiTietHDNhap(ChiTietHDNhap instance);
		private void attach_ChiTietHDNhaps(ChiTietHDNhap entity)
		{
			this.SendPropertyChanging();
			entity.NhanVien = this;
		}