ActiveReports之直接打印报表

前提概要参考:http://www.cnblogs.com/liandy0906/p/7936524.html

        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;
        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;
        }
        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 = 0;
        }

        private void PrintSetting()
        {
            if (m_streams == null || m_streams.Count == 0)
                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 = "Microsoft XPS Document Writer";
            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 = 0;
                //设置打印机打印份数
                printDoc.PrinterSettings.Copies = 1;
                //执行打印操作,Print方法将触发PrintPage事件。
                printDoc.Print();
            }
        }

        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;
            }
        }
View Code

    客户端调用:PrintStream(rvDoc.LocalReport);

原文地址:https://www.cnblogs.com/liandy0906/p/7965899.html