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

            rpt.Site = this.Site;
            return(rpt);
        }
        public ThongKeChiTheoNgay(DataTable data)
        {
            InitializeComponent();
            cpThongKeChiTheoNgay thongke = new cpThongKeChiTheoNgay();

            thongke.SetDataSource(data);
            rpThongKe.ReportSource = thongke;
        }