C#直接调用rdl报表生成报表并打印

       private void Run()
        {
            LocalReport report = new LocalReport();
            report.ReportPath = @"F:\SelfSystemPractice\Report\sqlserverreport\sqlserverreport\Report1.rdl";
            string connstr = @"Data Source=WIN-MT5JMJEOHPK;Initial Catalog=Study;Integrated Security=True";
            SqlConnection conn = new SqlConnection(connstr);
            string sql = "select  usercode,username,address from sys_user";
            SqlDataAdapter adapter = new SqlDataAdapter(sql, conn);
            DataSet set = new DataSet();
            adapter.Fill(set);

            ReportDataSource DataSeta = new ReportDataSource("DataSet1", set.Tables[0]);
            report.DataSources.Add(DataSeta);

            Export(report);

            m_currentPageIndex = 0;
            Print();
        }
      private void Export(LocalReport report)
        {
            string deviceInfo =
              "<DeviceInfo>" +
              "  <OutputFormat>EMF</OutputFormat>" +
              //"  <PageWidth>2in</PageWidth>" +
              //"  <PageHeight>20in</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);

            foreach (Stream stream in m_streams)
                stream.Position = 0;
        }
       private void Print()
        {
            const string printerName =
              "Microsoft XPS Document 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);
                Debug.WriteLine(msg);
                return;
            }
            printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
            printDoc.Print();
        }
        private void PrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage =
              new Metafile(m_streams[m_currentPageIndex]);
            ev.Graphics.DrawImage(pageImage, 0, 0);

            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }
       private Stream CreateStream(string name, string fileNameExtension,
          Encoding encoding, string mimeType, bool willSeek)
        {
            Stream stream = new FileStream(name + "." + fileNameExtension,
              FileMode.Create);
            m_streams.Add(stream);
            return stream;
        }