Microsoft.Reporting.WebForms.ReportDataSource[] RSArray = new Microsoft.Reporting.WebForms.ReportDataSource[1];
ReportViewer1.Visible = true;
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(new ReportDataSource("dsRatingReport", dsRatingReport.Tables(0)));
ReportViewer1.LocalReport.Refresh();