Hi sir
   I have 1 problem regarding crysatal report. my other report is opened and attached with mail but for 1 report it gives me problem.gives me error that parameter is not passed. other is work fine

I gave report sourse
   crvReport.ReportSource = rptDoc;
here i opened it
 public static void getMailDetails(ReportDocument rptDoc, string _subject)
            {

                Model.WebSession objSess = new Model.WebSession();
                objSess.MailIdentity = _subject;
                Stream sm = rptDoc.ExportToStream(ExportFormatType.PortableDoc Format);
                HttpContext.Current.Session["FileStream"] = sm;
                HttpContext.Current.Session["ReportDoc"] = rptDoc;

            }

pls tell me solution as early as possible.
 thanks a lot