private void frmHoaDonBanHang_Load(object sender, EventArgs e) { ReportDocument rp = new ReportDocument(); rp.Load(@"C:\Users\Ron\Desktop\Tốt Nghiệp\CHTapHoa\CHTapHoa\Reports\HoaDonBanHang.rpt"); List <HoaDonXuatDTO> dsHDX = new List <HoaDonXuatDTO>(); HoaDonXuatDTO hdx = _hdxBus.LayHDTheoMa(MaHD); dsHDX.Add(hdx); rp.SetDataSource(dsHDX); List <CTHDXuatDTO> dsSanPham = _cthdxBus.DanhSachChiTietHoaDonXuat(MaHD); rp.Subreports[0].SetDataSource(dsSanPham); crystalReportViewer1.ReportSource = rp; this.crystalReportViewer1.Show(); this.crystalReportViewer1.Refresh(); }