private void buttonThanhToanNhapHang_Click(object sender, EventArgs e)
{
if (maskedTextBoxMaPhieuNhap.Text.Length == 0)
{
MessageBox.Show("Chưa tạo phiếu nhập");
}
else
{
for (int i = 0; i < dataGridViewThongTinHoaDonNhapHang.Rows.Count - 1; i++)
{
ChiTietNhapHang a = new ChiTietNhapHang(int.Parse(maskedTextBoxMaPhieuNhap.Text), int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[0].Value.ToString()), int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[1].Value.ToString()), int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[2].Value.ToString()), int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[3].Value.ToString()));
ctnh.Add(a);
hh.CapNhatThemSoLuong(int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[0].Value.ToString()), int.Parse(dataGridViewThongTinHoaDonNhapHang.Rows[i].Cells[1].Value.ToString()));
}
}
}