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

            rpt.Site = this.Site;
            return(rpt);
        }
        private void RPHoaDon_Load(object sender, EventArgs e)
        {
            Reporthd rpt = new Reporthd();

            crystalReportViewer1.ReportSource = rpt;
            rpt.SetDatabaseLogon("sa", "sql2012", "A201-PC08\\SQL2012", "QLNhaHang");
            rpt.SetParameterValue("LocMaHD", ma);


            crystalReportViewer1.Refresh();
            crystalReportViewer1.DisplayToolbar   = false;
            crystalReportViewer1.DisplayStatusBar = false;
        }