C#

private void btnRun_Click(object sender, EventArgs e)

{
            reportViewer1.ProcessingMode = ProcessingMode.Local;

            LocalReport localReport = reportViewer1.LocalReport;

            reportViewer1.LocalReport.ReportPath = "Report1.rdlc";

            string param0 = GlobalClass.GlobalVar;

            ReportParameter inputdata = new ReportParameter("DateOne", param0);

            <code>this.reportViewer1.LocalReport.SetParameters(new ReportParameter[] {inputdata});</code>
             

            // TODO: This line of code loads data into the 'AttendanceDataSet.EMPLOYEES' table. You can move, or remove it, as needed.

            this.EMPLOYEESTableAdapter.Fill(this.AttendanceDataSet.EMPLOYEES);

this.reportViewer1.RefreshReport();

}