public virtual CrystalDecisions.CrystalReports.Engine.ReportDocument CreateReport()
        {
            rptDonHang rpt = new rptDonHang();

            rpt.Site = this.Site;
            return(rpt);
        }
        private void frmInHDDH_Load(object sender, EventArgs e)
        {
            DataTable dt = new DataTable();
            Connect   kn = new Connect();


            dt = kn.laybang("SELECT DONHANG.MaDH, KHACHHANG.TenKH, DONHANG.TenMay, CTHD.TrinhTrangMay, CTHD.TenDichVu, CTHD.HinhThucSua, CTHD.SoTien " +
                            " FROM CTHD INNER JOIN " +
                            " DONHANG ON CTHD.MaDH = DONHANG.MaDH INNER JOIN " +
                            " KHACHHANG ON DONHANG.MaKH = KHACHHANG.MaKH");

            rptDonHang rpt = new rptDonHang();

            rpt.SetDataSource(dt);
            rptvDonHang.ReportSource = rpt;
        }