private void LoadDaTaChiTietHoaDon(int idHoaDon)
{
List <CHI_TIET_HOA_DON> l = _hoaDonBLL.LayChiTietHoaDonTheoIDHoaDon(idHoaDon);
dtHoaDon = Utils.Util.ConvertToDataTable(l);
dtHoaDon.Columns.Add("Don_Vi", typeof(int));
dtHoaDon.Columns.Add("Don_Gia", typeof(int));
dtHoaDon.Columns.Add("Thanh_Tien", typeof(int));
gridControl_HoaDon.DataSource = dtHoaDon;
for (int i = 0; i < l.Count; i++)
{
dtHoaDon.Rows[i]["Don_Vi"] = _monBLL.LayDonViTinh(l[i].ID_Mon);
dtHoaDon.Rows[i]["Don_Gia"] = _monBLL.LayDonGia(l[i].ID_Mon);
int t = int.Parse(gridView_HoaDon.GetRowCellValue(i, "So_Luong").ToString()) * (int)_monBLL.LayDonGia(l[i].ID_Mon);
dtHoaDon.Rows[i]["Thanh_Tien"] = t;
}
ThanhToan();
txt_ThanhToan.Text = String.Format("{0:0,0}", ThanhToan());
tb_VAT.Text = _thamsoBLL.LayVAT().ToString();
tb_GiamGia.Text = "0";
}
