private void gridViewListHangHoa_RowCellClick(object sender, RowCellClickEventArgs e) { int IDBanHT = IDBan; int IDHoaDonHT = DAO_BanHang.IDHoaDon(IDBanHT); int kt = 0; if (IDBanHT == 0) { MessageBox.Show("Vui lòng chọn bàn để gọi món.", "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Error); } else { GridView view = (GridView)sender; string IDHangHoa = gridViewListHangHoa.GetRowCellValue(gridViewListHangHoa.FocusedRowHandle, gridViewListHangHoa.Columns[0]).ToString(); int IDBangGia = DAO_GoiMon.LayIDBanGia(IDBanHT); float GiaBan = 0; if (IDBangGia != 0) { GiaBan = DAO_GoiMon.LayGiaBan(Int32.Parse(IDHangHoa), IDBangGia); } //MessageBox.Show(TenHangHoa); if (IDHoaDonHT == 0) { int IDNhanVien = frmDangNhap.NguoiDung.Id; object ID = DAO_GoiMon.ThemHoaDon(IDBan, IDNhanVien, frmDangNhap.NguoiDung.Idchinhanh); IDHoaDonHT = Int32.Parse(ID.ToString()); if (ID != null) { kt = 1; DAO_GoiMon.ThemChiTietHoaDon(ID, Int32.Parse(IDHangHoa), 1, GiaBan, GiaBan, IDBanHT, DAO_Setting.LayMaHangHoa_IDHH(IDHangHoa), DAO_Setting.LayIDDonViTinh(DAO_Setting.LayMaHangHoa_IDHH(IDHangHoa)), 0, frmDangNhap.NguoiDung.Idchinhanh); DAO_BAN.DoiTrangThaiBanCoNguoi(IDBanHT); } } else { if (DAO_ChiTietHoaDon.KiemTraHangHoa(IDHoaDonHT, Int32.Parse(IDHangHoa), IDBanHT, 0, frmDangNhap.NguoiDung.Idchinhanh) == false) { DAO_GoiMon.ThemChiTietHoaDon(IDHoaDonHT, Int32.Parse(IDHangHoa), 1, GiaBan, GiaBan, IDBanHT, DAO_Setting.LayMaHangHoa_IDHH(IDHangHoa), DAO_Setting.LayIDDonViTinh(DAO_Setting.LayMaHangHoa_IDHH(IDHangHoa)), 0, frmDangNhap.NguoiDung.Idchinhanh); } else { DAO_GoiMon.CapNhatChiTietHoaDon(IDHoaDonHT, 1, GiaBan, Int32.Parse(IDHangHoa), IDBanHT, frmDangNhap.NguoiDung.Idchinhanh); } } } TinhTongTien(IDHoaDonHT); HienThiHoaDon(IDBanHT); if (kt == 1) { DanhSachBan(); } }