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

            rpt.Site = this.Site;
            return(rpt);
        }
        public frmrptNV_HDhethan()
        {
            InitializeComponent();
            rptHopDongHetHan r = new rptHopDongHetHan();

            r.SetDataSource(chopdong.layNV_HDhethan(frmKiemTraHDHetHan.dk));



            this.rvNV_HDhethan.ReportSource = r;
        }