private void detach_tbl_ChiTietHDs(tbl_ChiTietHD entity)
{
this.SendPropertyChanging();
entity.tbl_HoaDon = null;
}
partial void Deletetbl_ChiTietHD(tbl_ChiTietHD instance);
partial void Inserttbl_ChiTietHD(tbl_ChiTietHD instance);
partial void Updatetbl_ChiTietHD(tbl_ChiTietHD instance);
private void attach_tbl_ChiTietHDs(tbl_ChiTietHD entity)
{
this.SendPropertyChanging();
entity.tbl_SanPham = this;
}