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

            rpt.Site = this.Site;
            return(rpt);
        }
        private void CobrosReportViewer_Load(object sender, EventArgs e)
        {
            CobrosReporte reporte = new CobrosReporte();

            reporte.SetDataSource(ListaCobros);

            MyCrystalReportViewer.ReportSource = reporte;
            MyCrystalReportViewer.Refresh();
        }