public virtual CrystalDecisions.CrystalReports.Engine.ReportDocument CreateReport()
        {
            CrystalReport2 rpt = new CrystalReport2();

            rpt.Site = this.Site;
            return(rpt);
        }
        private void button1_Click(object sender, EventArgs e)
        {
            CrystalReport2 reporte = new CrystalReport2();

            reporte.SetParameterValue("@fechaInicio", dateTimePicker1.Value.Date);
            reporte.SetParameterValue("@fechaFin", dateTimePicker2.Value.Date);
            crystalReportViewer1.ReportSource = reporte;
            //crystalReportViewer1.ReportSource = reporte;
        }