public ActionResult Index()
        {
            LocalReport localReport = new LocalReport();

            localReport.ReportPath = Server.MapPath(@"~/Report/myDataSet.rdlc");

            ReportDataSource reportDataSource = new ReportDataSource("MyDataSet", new FS_NEWEntities().T_Login.ToList());



            localReport.DataSources.Add(reportDataSource);

            string reportType = "PDF";

            string mimeType = "application/pdf ";

            string encoding;

            string fileNameExtension;



            //The DeviceInfo settings should be changed based on the reportType

            //http://msdn2.microsoft.com/en-us/library/ms155397.aspx

            string deviceInfo =

            "<DeviceInfo>" +

            "  <OutputFormat>PDF</OutputFormat>" +

            "  <PageWidth>8.5in</PageWidth>" +

            "  <PageHeight>11in</PageHeight>" +

            "  <MarginTop>0.5in</MarginTop>" +

            "  <MarginLeft>1in</MarginLeft>" +

            "  <MarginRight>1in</MarginRight>" +

            "  <MarginBottom>0.5in</MarginBottom>" +

            "</DeviceInfo>";



            Warning[] warnings;

            string[] streams;

            byte[] renderedBytes;



            //Render the report

            renderedBytes = localReport.Render(

                reportType

            );

          

            return File(renderedBytes,mimeType);
           
        }