解决给分不够再加!

private int m_currentPageIndex;
        private IList<Stream> m_streams;        private DataTable LoadSalesData()
        {
            DataTable table = new DataTable();
            table.Columns.Add(new DataColumn("Name"));
            DataRow row = table.NewRow();
            row["Name"] = "测试";
            table.Rows.Add(row);
            return table;
        }        private Stream CreateStream(string name,
          string fileNameExtension, Encoding encoding,
          string mimeType, bool willSeek)
        {
            Stream stream = new FileStream(@"c:\My Reports\" + name +
              "." + fileNameExtension, FileMode.Create);
            m_streams.Add(stream);
            return stream;
        }        private void Export(LocalReport report)
        {
            string deviceInfo =
              " <DeviceInfo>" +
              "  <OutputFormat>EMF </OutputFormat>" +
              "  <PageWidth>8.5in </PageWidth>" +
              "  <PageHeight>11in </PageHeight>" +
              "  <MarginTop>0.25in </MarginTop>" +
              "  <MarginLeft>0.25in </MarginLeft>" +
              "  <MarginRight>0.25in </MarginRight>" +
              "  <MarginBottom>0.25in </MarginBottom>" +
              " </DeviceInfo>";
            Warning[] warnings;
            m_streams = new List<Stream>();
            report.Render("Image", deviceInfo, CreateStream, out warnings);//再此处出错: "本地报表处理期间出错。" 如何解决呢请高人指点
            foreach (Stream stream in m_streams)
                stream.Position = 0;
        }        private void PrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);
            ev.Graphics.DrawImage(pageImage, ev.PageBounds);            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }        private void Print()
        {
            const string printerName = "Microsoft Office Document Image Writer";            if (m_streams == null || m_streams.Count == 0)
                return;            PrintDocument printDoc = new PrintDocument();
            printDoc.PrinterSettings.PrinterName = printerName;
            if (!printDoc.PrinterSettings.IsValid)
            {
                string msg = String.Format("Can't find printer \"{0}\".", printerName);
                MessageBox.Show(msg, "Print Error");
                return;
            }
            printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
            printDoc.Print();
        }        private void Run()
        {
            LocalReport report = new LocalReport();
            report.ReportPath = @"D:\CaseCode\Rdlc报表\Rdlc报表\Report1.rdlc";
            report.DataSources.Add(new ReportDataSource("Sales", LoadSalesData()));
            Export(report);
            m_currentPageIndex = 0;
            Print();
        } 
        private void button1_Click(object sender, EventArgs e)
        {
            Run();
        }