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

            rpt.Site = this.Site;
            return(rpt);
        }
        private void ButtonXem_Click(object sender, EventArgs e)
        {
            QLThUOC.DataLayer.NhaCungCapDATA ncc = new QLThUOC.DataLayer.NhaCungCapDATA();
            DataTable     tb1    = ncc.LayDSNhaCungCap();
            rptNhaCungCap report = new rptNhaCungCap();

            report.SetDataSource(tb1);

            CrystalReportViewerNhaCungCap.ReportSource = report;
        }