1 代码 2 #region public static 3 /// <summary>

4 /// 获取指定ReportViewer总物理页数

5 /// guog2009-05-06新增

6 /// </summary>

7 /// <param name="reportViewer"> ReportViewer控件 </param>

8 /// <returns> 总物理页数，默认值为0 </returns>

9 public static int GetTotalPage(ReportViewer reportViewer) 10 { 11 int result = 0; 12 // 设置为打印预览模式

13 reportViewer.SetDisplayMode(DisplayMode.PrintLayout); 14 15 // 记录当前页

16 int currentPage = reportViewer.CurrentPage; 17 if (reportViewer.LocalReport.GetTotalPages() > 0) 18 { // 自带的GetTotalPages()方法返回的是逻辑页面总数，所以这里重新处理

19 20 while ( true) 21 { 22 try 23 { 24 reportViewer.CurrentPage += 1; 25 } 26 catch 27 { 28 reportViewer.CurrentPage -= 1; 29 result = reportViewer.CurrentPage; 30 break; 31 } 32 finally 33 { 34 // 指定到原始位置

35 reportViewer.CurrentPage = currentPage; 36 } 37 } 38 } 39 40 return result; 41 } 42 43 44 #endregion public static

代码 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using yxsoft.emcms.cs.ReportPrintBaseLib; using yxsoft.emcms.common; using System.Reflection; using Microsoft.Reporting.WinForms; using Guog.Emcms.Win.Business.GeneralDataQuery.VerifyPrintView; using System.Drawing.Printing; using System.IO; using System.Drawing.Imaging; using System.Xml; namespace Guog.Emcms.Win.YXEmcms.Forms { public partial class FrmMeterVerifyPrintView : Form { #region 成员变量 /// <summary>

/// 打印的对象

/// </summary>

private PrintDocument m_printDocument = new PrintDocument(); /// <summary>

/// 页面设置

/// </summary>

private PageSettings m_pageSettings = new PageSettings(); /// <summary>

/// 打印文件流列表

/// </summary>

private IList<Stream> m_streams = new List<Stream>(); /// <summary>

/// 当前呈现的页

/// </summary>

private int m_currentPageIndex = 0; /// <summary>

/// 是否横向打印,true表示横向,false表示纵向

/// </summary>

private bool m_isLandSapce = false; /// <summary>

/// 打印输出的对象

/// </summary>

private ReportPrintBase m_reportPrintBase = null; /// <summary>

/// 要打印输出的记录总数

/// </summary>

private int m_chkedCount = 0; /// <summary>

/// 空白页

/// </summary>

private bool m_isBlank = true; /// <summary>

/// 双面打印

/// </summary>

private bool m_duplex = false; #endregion 成员变量 #region 窗体事件 public FrmMeterVerifyPrintView(ReportPrintBase reportPrintBase, int chkedCount) { InitializeComponent(); this.m_chkedCount = chkedCount; this.m_reportPrintBase = reportPrintBase; this.m_isLandSapce= this.IsLandSapces( this.m_reportPrintBase.MainReport.ReportFileStream); this.DoubleBuffered = true; } private void FrmMeterVerifyPrintView_Load( object sender, EventArgs e) { BindPrinters(); } private void FrmMeterVerifyPrintView_Shown( object sender, EventArgs e) { if (m_reportPrintBase != null && m_reportPrintBase.MainReport != null && m_reportPrintBase.MainReport.Validate) { BindReportData( this.m_reportPrintBase); } this.rptView.SetDisplayMode(DisplayMode.PrintLayout); this.rptView.ZoomMode = ZoomMode.PageWidth; // this.rptView.ZoomPercent = 100;

} #region 加载报表数据 private void BindReportData(ReportPrintBase reportPrintBase) { // 报表信息有效

if (reportPrintBase != null && reportPrintBase.MainReport != null && reportPrintBase.MainReport.Validate) { // 支持的打印类型

#region 添加子报表加载事件,向子报表提供数据源支持 if (reportPrintBase.subreportProcessingEventHandler != null) { // 加载子报表指定的事件,每个子报表加载时通过此事件指向的方法添加对应的数据源

this.rptView.LocalReport.SubreportProcessing += reportPrintBase.subreportProcessingEventHandler; } #endregion 加载子报表事件 #region 添加报表 // 加载主报表文件流

this.rptView.LocalReport.LoadReportDefinition(reportPrintBase.MainReport.ReportFileStream); // 添加主报表数据源

this.rptView.LocalReport.DataSources.Add(reportPrintBase.MainReport.DataSource); if (reportPrintBase.SubReports != null && reportPrintBase.SubReports.Count > 0) { foreach (ReportBaseInfo rpt in reportPrintBase.SubReports) { // 加载子报表文件流

this.rptView.LocalReport.LoadSubreportDefinition(rpt.Name, rpt.ReportFileStream); } } #endregion 添加报表 // 重新呈现(刷新)ReportViewer

this.rptView.RefreshReport(); } // 报表信息有效

} #endregion 加载报表数据 private void FrmMeterVerifyPrintView_FormClosing( object sender, FormClosingEventArgs e) { this.rptView.Reset(); CloseStreams(); Application.DoEvents(); } /// <summary>

/// 关闭当前所有文件流

/// </summary>

private void CloseStreams() { if ( this.m_streams != null && this.m_streams.Count > 0) { foreach (Stream s in this.m_streams) { s.SetLength( 0); s.Flush(); s.Close(); } this.m_streams.Clear(); } } #endregion #region 获取所有打印机 /// <summary>

/// 获取当前安装在计算机上的所有打印机名称

/// </summary>

/// <returns></returns>

public static PrinterSettings.StringCollection GetAllPrintNames() { return System.Drawing.Printing.PrinterSettings.InstalledPrinters; } #endregion 获取所有打印机 #region 绑定打印机列表 private void BindPrinters() { cmbSelectPrinter.Items.Clear(); cmbSelectPrinter.DropDownStyle = ComboBoxStyle.DropDownList; string printerName; // 获取默认打印机

string defaultPrinterName = this.m_printDocument.PrinterSettings.PrinterName; for ( int i = 0; i < PrinterSettings.InstalledPrinters.Count; i++) { printerName = PrinterSettings.InstalledPrinters[i]; cmbSelectPrinter.Items.Add(printerName); if (printerName == defaultPrinterName) { cmbSelectPrinter.SelectedIndex = i; } } } #endregion 绑定打印机列表

代码 #region 打印 #region 判断是否为横向 /// <summary>

/// 判断是否为横向

/// </summary>

/// <param name="stm"> Rdlc文件流 </param>

/// <returns></returns>

private bool IsLandSapces(Stream stm) { string strPageWidth = ""; string strPageHeight = ""; XmlReader xmlReader = XmlReader.Create(stm); if (xmlReader.ReadToFollowing( " PageWidth ")) { strPageWidth = xmlReader.ReadElementString( " PageWidth "); } xmlReader.Close(); return strPageWidth == " 29.7cm "; } #endregion 读取XML文件 /// <summary>

/// 提供 Stream 对象以进行呈现的 CreateStreamCallback 委托指向的方法

/// 这里为将报表的每一个页面作为一个EMF图片存放，通常用于报表呈现

/// </summary>

/// <param name="name"> 流的名称 </param>

/// <param name="fileNameExtension"> 创建文件流时要使用的文件扩展名 </param>

/// <param name="encoding"> 指定流的字符编码的 Encoding 枚举器值。如果流不包含字符，则此值可能为 null。 </param>

/// <param name="mimeType"> 一个包含流的 MIME 类型的 string </param>

/// <param name="willSeek"> 指示流是否需要支持查找的 Boolean 值。如果值为 false，则流将为只前推，并将按其创建顺序发送到块区中的客户端。如果值为 true，则流可以任何顺序写入。 </param>

/// <returns> ReportViewer 控件可以写入数据的 Stream 对象 </returns>

private Stream CreateStream( string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek) { Stream stream = new FileStream(Path.GetTempPath() + name + " . " + fileNameExtension, FileMode.Create,FileAccess.ReadWrite,FileShare.ReadWrite); // Stream stream = new FileStream(Path.GetTempFileName(), FileMode.Create,FileAccess.ReadWrite,FileShare.ReadWrite,8000,true);

m_streams.Add(stream); return stream; } /// <summary>

/// 导出报表的每一个页面到一个EMF文件

/// </summary>

/// <param name="report"> ReportViewer.LocalReport </param>

/// <param name="pageSettings"> 页面设置 </param>

private void Export(LocalReport report,PageSettings pageSettings) { StringBuilder sbDeviceInfo = new StringBuilder(); if (pageSettings != null) { sbDeviceInfo.AppendLine( " <DeviceInfo> "); sbDeviceInfo.AppendLine( " <OutputFormat>EMF</OutputFormat> "); sbDeviceInfo.AppendLine(String.Format( " <PageWidth>{0}cm</PageWidth> ", FromInchToCM(pageSettings.PaperSize.Width))); sbDeviceInfo.AppendLine(String.Format( " <PageHeight>{0}cm</PageHeight> ", FromInchToCM(pageSettings.PaperSize.Height))); sbDeviceInfo.AppendLine(String.Format( " <MarginTop>{0}cm</MarginTop> ", FromInchToCM(pageSettings.Margins.Top))); sbDeviceInfo.AppendLine(String.Format( " <MarginLeft>{0}cm</MarginLeft> ", FromInchToCM(pageSettings.Margins.Left))); sbDeviceInfo.AppendLine(String.Format( " <MarginRight>{0}cm</MarginRight> ", FromInchToCM(pageSettings.Margins.Right))); sbDeviceInfo.AppendLine(String.Format( " <MarginBottom>{0}cm</MarginBottom> ", FromInchToCM(pageSettings.Margins.Bottom))); sbDeviceInfo.AppendLine( " </DeviceInfo> "); } else { string deviceInfo = " <DeviceInfo> " + " <OutputFormat>EMF</OutputFormat> " + " <PageWidth>21cm</PageWidth> " + " <PageHeight>29.7cm</PageHeight> " + " <MarginTop>2.5cm</MarginTop> " + " <MarginLeft>2.5cm</MarginLeft> " + " <MarginRight>2.5cm</MarginRight> " + " <MarginBottom>2.5cm</MarginBottom> " + " </DeviceInfo> "; sbDeviceInfo.AppendLine(deviceInfo); } Warning[] warnings; m_streams = new List<Stream>(); report.Render( " Image ", sbDeviceInfo.ToString(), new CreateStreamCallback(CreateStream), out warnings); foreach (Stream stream in m_streams) stream.Position = 0; } /// <summary>

/// 当前页打印的输出

/// </summary>

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

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

private void PrintPage( object sender, PrintPageEventArgs ev) { if ( this.m_duplex) { // 双面打印

#region 双面打印 // 获取每份页数

int pagePerCopy = GetPageCountPerCopy( this.m_streams.Count, this.m_chkedCount); if ( this.m_currentPageIndex > 0 && ( this.m_currentPageIndex + 1) % pagePerCopy == 1 && this.m_isBlank && pagePerCopy % 2 != 0) { // 输出空白页

// 当前页面不是第一页，且当前页面为此份报表第一页，且每份报表页数为奇数

Bitmap emptyImage = new Bitmap( 10, 10); if (ev.PageSettings.Landscape) { ev.Graphics.DrawImage(emptyImage, new Rectangle( 0, 0, ev.PageBounds.Height, ev.PageBounds.Width)); } else { ev.Graphics.DrawImage(emptyImage, ev.PageBounds); } // 标记已经打印空白页

this.m_isBlank = false; } else { Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]); if (ev.PageSettings.Landscape) { ev.Graphics.DrawImage(pageImage, new Rectangle( 0, 0, ev.PageBounds.Height, ev.PageBounds.Width)); } else { ev.Graphics.DrawImage(pageImage, ev.PageBounds); } m_currentPageIndex++; // 标记等待打印下一个空白页

this.m_isBlank = true; } #endregion 双面打印 } else { // 单面打印

#region 单面打印 Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]); if (ev.PageSettings.Landscape) { ev.Graphics.DrawImage(pageImage, new Rectangle( 0, 0, ev.PageBounds.Height, ev.PageBounds.Width)); } else { ev.Graphics.DrawImage(pageImage, ev.PageBounds); } m_currentPageIndex++; #endregion 单面打印 } ev.HasMorePages = (m_currentPageIndex < m_streams.Count); } /// <summary>

/// 打印开始

/// </summary>

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

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

private void BeginPrint( object sender, PrintEventArgs e) { this.btnPrint.Enabled = false; } /// <summary>

/// 打印结束

/// </summary>

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

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

private void EndPrint( object sender, PrintEventArgs e) { this.btnPrint.Enabled = true; }

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/p/4276956.html，如需转载请自行联系原作者