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

            rpt.Site = this.Site;
            return(rpt);
        }
        private void frmInHDB_Load(object sender, EventArgs e)
        {
            CrystalReportHDB report = new CrystalReportHDB();

            report.SetDataSource(ct_hoadon.GetTTHoaDon(mahoadon));
            crvHDB.ReportSource = report;
            crvHDB.Refresh();
        }