How to use datatable inn MVC as dataset for report

I wont be able to bind datatable, to report it is giving error as object reference if just set datatable to asenummarable and assign.

The code I am using is given below, please tell me where I am wrong

 #region modifiedcode
            SqlConnection conn = new SqlConnection("");
             ;
            #endregion

            var contributors = new ContributorsList().SmallContributorCollection;

            var reportDefinitionAsStream = LoadStreamFromResource("ErrorList.srd");

            var rf = new ReportingFactory();
            var reportCreator = rf.ReportCreator(reportDefinitionAsStream, runQuery("SELECT Top 10 * FROM ELMAH_error", conn).AsEnumerable());
            reportCreator.BuildExportList();
            var ms = new MemoryStream();
            PdfExporter ex = new PdfExporter(reportCreator.Pages);
            ex.Run(ms);

            ms.Seek(0, SeekOrigin.Begin);
            return File(ms, "application/pdf", "contributors.pdf");