网上找来的RDLC报表打印实例,比较全面的实例,包括双面打印,XML操作等

#region public static
/// <summary>
/// 获取指定ReportViewer总物理页数
/// guog2009-05-06新增
/// </summary>
/// <param name="reportViewer">ReportViewer控件</param>
/// <returns>总物理页数，默认值为0</returns>
public static int GetTotalPage(ReportViewer reportViewer)
{
int result = 0;
//设置为打印预览模式
reportViewer.SetDisplayMode(DisplayMode.PrintLayout);

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

while (true)
{
try
{
reportViewer.CurrentPage += 1;
}
catch
{
reportViewer.CurrentPage -= 1;
result = reportViewer.CurrentPage;
break;
}
finally
{
//指定到原始位置
reportViewer.CurrentPage = currentPage;
}
}
}

return result;
}

#endregion public static

#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;
}

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