//打印清单

                    System.Data.DataTable dt = print_QD(dr);

                    ReportViewer rvDoc = new ReportViewer();

                    rvDoc.LocalReport.ReportEmbeddedResource = "SD_bcso.Report.rdlc";//加上报表的路径

                    rvDoc.LocalReport.DataSources.Add(new ReportDataSource(dt.TableName, dt));

                    PrintStream(rvDoc.LocalReport);

 /// <summary>

        /// 用来记录当前打印到第几页了

        /// </summary>

        private int m_currentPageIndex;

        /// <summary>

        /// 声明一个Stream对象的列表用来保存报表的输出数据,LocalReport对象的Render方法会将报表按页输出为多个Stream对象。

        /// </summary>

        private IList<Stream> m_streams;

        private bool isLandSapces = false;

        /// <summary>

        /// 用来提供Stream对象的函数，用于LocalReport对象的Render方法的第三个参数。

        /// </summary>

        /// <param name="name"></param>

        /// <param name="fileNameExtension"></param>

        /// <param name="encoding"></param>

        /// <param name="mimeType"></param>

        /// <param name="willSeek"></param>

        /// <returns></returns>

        private Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)

        {

            //如果需要将报表输出的数据保存为文件，请使用FileStream对象。

            Stream stream = new MemoryStream();

            m_streams.Add(stream);

            return stream;

        }

        /// <summary>

        /// 为Report.rdlc创建本地报告加载数据,输出报告到.emf文件,并打印,同时释放资源

        /// </summary>

        /// <param name="rv">参数:ReportViewer.LocalReport</param>

        public void PrintStream(LocalReport rvDoc)

        {

            //获取LocalReport中的报表页面方向

            isLandSapces = rvDoc.GetDefaultPageSettings().IsLandscape;

            Export(rvDoc);

            PrintSetting();

            Dispose();

        }

        private void Export(LocalReport report)

        {

            string deviceInfo =

            @"<DeviceInfo>

                 <OutputFormat>EMF</OutputFormat>

             </DeviceInfo>";

            Warning[] warnings;

            m_streams = new List<Stream>();

            //将报表的内容按照deviceInfo指定的格式输出到CreateStream函数提供的Stream中。

            report.Render("Image", deviceInfo, CreateStream, out warnings);

            foreach (Stream stream in m_streams)

                stream.Position = ;

        }

        private void PrintSetting()

        {

            if (m_streams == null || m_streams.Count == )

                throw new Exception("错误:没有检测到打印数据流");

            //声明PrintDocument对象用于数据的打印

            PrintDocument printDoc = new PrintDocument();

            //获取配置文件的清单打印机名称

            System.Configuration.AppSettingsReader appSettings = new System.Configuration.AppSettingsReader();

            printDoc.PrinterSettings.PrinterName = appSettings.GetValue("QDPrint", Type.GetType("System.String")).ToString();

            printDoc.PrintController = new System.Drawing.Printing.StandardPrintController();//指定打印机不显示页码

            //判断指定的打印机是否可用

            if (!printDoc.PrinterSettings.IsValid)

            {

                throw new Exception("错误:找不到打印机");

            }

            else

            {

                //设置打印机方向遵从报表方向

                printDoc.DefaultPageSettings.Landscape = isLandSapces;

                //声明PrintDocument对象的PrintPage事件，具体的打印操作需要在这个事件中处理。

                printDoc.PrintPage += new PrintPageEventHandler(PrintPage);

                m_currentPageIndex = ;

                //设置打印机打印份数

                printDoc.PrinterSettings.Copies = ;

                //执行打印操作，Print方法将触发PrintPage事件。

                printDoc.Print();

            }

        }

        /// <summary>

        /// 处理程序PrintPageEvents

        /// </summary>

        /// <param name="sender"></param>

        /// <param name="ev"></param>

        private void PrintPage(object sender, PrintPageEventArgs ev)

        {

            //Metafile对象用来保存EMF或WMF格式的图形，

            //我们在前面将报表的内容输出为EMF图形格式的数据流。

            Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);

            //调整打印机区域的边距

            System.Drawing.Rectangle adjustedRect = new System.Drawing.Rectangle(

                ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,

                ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,

                ev.PageBounds.Width,

                ev.PageBounds.Height);

            //绘制一个白色背景的报告

            //ev.Graphics.FillRectangle(Brushes.White, adjustedRect);

            //获取报告内容

            //这里的Graphics对象实际指向了打印机

            ev.Graphics.DrawImage(pageImage, adjustedRect);

            //ev.Graphics.DrawImage(pageImage, ev.PageBounds);

            // 准备下一个页,已确定操作尚未结束

            m_currentPageIndex++;

            //设置是否需要继续打印

            ev.HasMorePages = (m_currentPageIndex < m_streams.Count);

        }

        public void Dispose()

        {

            if (m_streams != null)

            {

                foreach (Stream stream in m_streams)

                    stream.Close();

                m_streams = null;

            }

        }