void LayChiTietDonHang() { float tongTien = 0; DataTable dt = DonHang.LayChiTietDonHang(id); if (dt.Rows.Count > 0) { for (int i = 0; i < dt.Rows.Count; i++) { float thanhTien = float.Parse(dt.Rows[i]["giaBan"].ToString()) * int.Parse(dt.Rows[i]["soLuong"].ToString()); tongTien += thanhTien; ltrSanPham.Text += @" <tr> <td class='cotMa'>" + dt.Rows[i]["maSP"] + @"</td> <td class='cotTen'>" + dt.Rows[i]["tenSP"] + @"</td> <td class='cotAnh'> <img class='anhDaiDien'src='../Images/" + dt.Rows[i]["anhSP"] + @"'/> <img class='anhDaiDienHover'src='../Images/" + dt.Rows[i]["anhSP"] + @"'/> </td> <td class='cotDonGia'>" + dt.Rows[i]["giaBan"] + @"</td> <td class='cotCongCu'>" + dt.Rows[i]["soLuong"] + @"</td> <td class='cotCongCu'>" + thanhTien + @"</td> </tr> "; } ltrTongTien.Text = @"<span class='item-total'>" + tongTien + @"</span>"; } else { ltrTongTien.Text = @"<span class='item-total'>" + 0 + @"</span>"; } }