private int m_currentPageIndex;        
private List <Stream> m_streams; 
 
          private Stream CreateStream (string name, string fileNameExtension,Encoding encoding, string mimeType, bool willSeek) 
            { 

                        Stream stream = new MemoryStream ();
                       m_streams.Add(stream); 
                       return stream; 

            }      

private void run()
        {
            LocalReport _localReport = _reportviewer.LocalReport;

               string path = Path.GetDirectoryName(Application.StartupPath);
               string reportPath = Path.Combine(path, @"PlanoInspecao.rdlc");
               string originalpath = reportPath.Replace("\\bin", "");
              _localReport.ReportPath = originalpath;
       
            Int32 OrderID = Convert.ToInt32(dgvPlano.SelectedRows[0].Cells[0].Value);

            PlanoManutencaoNegocios planonegocios = new PlanoManutencaoNegocios();
             DataTable dt = new DataTable();
            dt = planonegocios.SelecionarporId(OrderID);
            ReportDataSource source = new ReportDataSource(dt.TableName , dt);

              _localReport.DataSources.Add(source);

            Export(_localReport);
            Print();
        }

 private void Export(LocalReport report)
        {
            try
            {

           
             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;
           report.Render("Image", deviceInfo, CreateStream, out warnings);    <- o erro aparece aqui
           Stream stream = new MemoryStream();           
           m_streams.Add(stream);
            }
            catch (Exception ex)
            {

                MessageBox.Show(ex.Message);
            }

        }

 private void PrintPage(object sender, PrintPageEventArgs ev)
        {
            Metafile pageImage = new
               Metafile(m_streams[m_currentPageIndex]);

            // Adjust rectangular area with printer margins.
            Rectangle adjustedRect = new Rectangle(
                ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
                ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
                ev.PageBounds.Width,
                ev.PageBounds.Height);

            // Draw a white background for the report
            ev.Graphics.FillRectangle(Brushes.White, adjustedRect);

            // Draw the report content
            ev.Graphics.DrawImage(pageImage, adjustedRect);

            // Prepare for the next page. Make sure we haven't hit the end.
            m_currentPageIndex++;
            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
        }

  private void Print()
        {
            try
            {

           
            if (m_streams == null || m_streams.Count == 0)
                throw new Exception("Error: no stream to print.");
            PrintDocument printDoc = new PrintDocument();
            if (!printDoc.PrinterSettings.IsValid)
            {
                throw new Exception("Error: cannot find the default printer.");
            }
            else
            {
                printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
                m_currentPageIndex = 0;
                printDoc.Print();
            }
            }
            catch (Exception ex )
            {


                MessageBox.Show(ex.Message);
            }
        }