private void btn_del_ItemClick(object sender, ItemClickEventArgs e)
{
for (int i = 0; i < dgv_cthd2.Rows.Count - 1; i++)
{
cthd.DeleteChiTietHoaDon(dgv_cthd2.Rows[i].Cells["MaHD"].Value.ToString(), dgv_cthd2.Rows[i].Cells["MaHang"].Value.ToString());
}
for (int i = 0; i < dgv_cthd2.Rows.Count - 1; i++)
{
ctk.updateSoluonCong(dgv_cthd2.Rows[i].Cells["MaHD"].Value.ToString(), int.Parse(dgv_cthd2.Rows[i].Cells["SoLuong"].Value.ToString()));
}
hd.DeleteHoaDon(dgv_hoaDon.CurrentRow.Cells["MaHD"].Value.ToString());
refress();
}
