System.IO.FileStream FS = new System.IO.FileStream(FileName, System.IO.FileMode.Create);
for (int i =  0 ; i <= Table.Rows.Count -  1 ; i++)
{
            ReportParameters.Clear();
            ReportParameters.Add(new ReportParameter("RP_Date", ((DateTime)Table.Rows[i].ItemArray[ 0 ]).ToString()));
            ReportViewer rv = new ReportViewer();
            rv.ProcessingMode = Microsoft.Reporting.WinForms.ProcessingMode.Remote;
            ServerReport sr = rv.ServerReport;
            sr.ReportServerUrl = new System.Uri("http://***/reportserver", System.UriKind.Absolute);
            sr.ReportPath = "/" + ReportName;
            sr.SetParameters(ReportParameters);
            //sr.RenderStream
            byte[] bytes = sr.Render("PDF", null, out Reports.mimeType, out Reports.encoding, 
                                               out  Reports.extension, out Reports.streamids, out Reports.warnings);
            FS.Write(bytes,  0 , bytes.Length);
}
FS.Close();