【.Net码农】RDLC（Reportview）报表直接打印，支持所有浏览器，客户可在linux下浏览使用

最近在做一个打印清单的，但是rdlc报表自带的工具栏中的打印按钮只有在ie内核下的浏览器才可以使用（其他的就会 隐藏），这导致了使用火狐和谷歌浏览器还有使用linux系统的客户打印成了问题，于是就自己百度搜，谷歌搜，然后就解决了，下面放上源码

打印类 PrintHelp（我需要两个table座位数据源所以参数中有两个datatable）

using System;  2 using System.Collections.Generic;  3 using System.Linq;  4 using System.Web;  5 using System.IO;  6 using Microsoft.Reporting.WebForms;  7 using System.Drawing.Printing;  8 using System.Drawing.Imaging;  9 using System.Text; 10 using System.Data; 11  12 /// <summary> 13 /// PrintHelp 的摘要描述 14 /// </summary> 15 public class PrintHelp 16 { 17    18  19     private int m_currentPageIndex; 20     private IList<Stream> m_streams; 21     /// <summary> 22     ///  23     /// </summary> 24     /// <param name="reportPath">報表路徑</param> 25     /// <param name="printerName">打印機名稱（使用默認打印機，不賦值）</param> 26     /// <param name="dt1">報表數據源1</param> 27     /// <param name="dt1SourceName">報表中數據源1對應名稱</param> 28     /// <param name="dt2">報表數據源2</param> 29     /// <param name="dt2SourceName">報表中數據源2對應名稱</param> 30     public void Run(string reportPath, string printerName, DataTable dt1, string dt1SourceName, DataTable dt2, string dt2SourceName,bool isHindeLogo) 31     { 32         LocalReport report = new LocalReport(); 33         report.ReportPath = reportPath;//加上报表的路径 34         report.DataSources.Add(new ReportDataSource(dt1SourceName, dt1)); 35         report.DataSources.Add(new ReportDataSource(dt2SourceName, dt2)); 36         report.EnableExternalImages = true; 37         ReportParameter rp = new ReportParameter("isHindeLogoImg", isHindeLogo.ToString());//这里我在报表里弄的参数 38         report.SetParameters(rp); 39         Export(report); 40         m_currentPageIndex = 0; 41         Print(printerName); 42     } 43  44     private void Export(LocalReport report) 45     { 46         string deviceInfo = 47           "<DeviceInfo>" + 48           "  <OutputFormat>EMF</OutputFormat>" + 49           "  <PageWidth>210mm</PageWidth>" + 50           "  <PageHeight>297mm</PageHeight>" + 51           "  <MarginTop>5mm</MarginTop>" + 52           "  <MarginLeft>10mm</MarginLeft>" + 53           "  <MarginRight>10mm</MarginRight>" + 54           "  <MarginBottom>5mm</MarginBottom>" + 55           "</DeviceInfo>";//这里是设置打印的格式 边距什么的 56         Warning[] warnings; 57         m_streams = new List<Stream>(); 58         try 59         { 60             report.Render("Image", deviceInfo, CreateStream, out warnings);//一般情况这里会出错的  使用catch得到错误原因  一般都是简单错误 61         } 62         catch (Exception ex) 63         { 64             Exception innerEx = ex.InnerException;//取内异常。因为内异常的信息才有用，才能排除问题。 65             while (innerEx != null) 66             { 67                 //MessageBox.Show(innerEx.Message); 68                 string errmessage = innerEx.Message; 69                 innerEx = innerEx.InnerException; 70             } 71         } 72         foreach (Stream stream in m_streams) 73         { 74             stream.Position = 0; 75         } 76     } 77  78     private Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek) 79     { 80         //name 需要进一步处理 81         Stream stream = new FileStream(name + DateTime.Now.Millisecond + "." + fileNameExtension, FileMode.Create);//为文件名加上时间 82         m_streams.Add(stream); 83         return stream; 84     } 85  86     private void Print(string printerName) 87     { 88         //string printerName = this.TextBox1.Text.Trim();// "傳送至 OneNote 2007"; 89         if (m_streams == null || m_streams.Count == 0) 90             return; 91         PrintDocument printDoc = new PrintDocument(); 92         // string aa = printDoc.PrinterSettings.PrinterName; 93         if (printerName.Length > 0) 94         { 95             printDoc.PrinterSettings.PrinterName = printerName; 96         } 97         foreach (PaperSize ps in printDoc.PrinterSettings.PaperSizes) 98         { 99             if (ps.PaperName == "A4")100             {101                 printDoc.PrinterSettings.DefaultPageSettings.PaperSize = ps;102                 printDoc.DefaultPageSettings.PaperSize = ps;103                 // printDoc.PrinterSettings.IsDefaultPrinter;//知道是否是预设定的打印机104             }105         }106         if (!printDoc.PrinterSettings.IsValid)107         {108             string msg = String.Format("Can't find printer " + printerName);109             System.Diagnostics.Debug.WriteLine(msg);110             return;111         }112         printDoc.PrintPage += new PrintPageEventHandler(PrintPage);113         printDoc.Print();114     }115 116 117     private void PrintPage(object sender, PrintPageEventArgs ev)118     {119         Metafile pageImage = new Metafile(m_streams[m_currentPageIndex]);120         ev.Graphics.DrawImage(pageImage, 0, 0, 827, 1169);//設置打印尺寸 单位是像素121         m_currentPageIndex++;122         ev.HasMorePages = (m_currentPageIndex < m_streams.Count);123     }124 }

调用很简单 直接一句话

            new PrintHelp().Run(AppDomain.CurrentDomain.BaseDirectory + "\\Reports\\Report.rdlc", this.TextBox1.Text.Trim(), stationapplication.dthead, "headsource", stationapplication.dtmessage, "datasource", true);

 

由于原来的工具栏没了打印按钮 所以也就没有存在的必要了  隐藏掉 自己做一个工具栏出来

缩放、上一页下一页首页什么的

 /// <summary>    /// 刷新    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void Button7_Click(object sender, EventArgs e)    {        this.ReportViewer1.LocalReport.Refresh();    }    /// <summary>    /// 首页    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void Button8_Click(object sender, EventArgs e)    {        this.ReportViewer1.CurrentPage = 1;    }    /// <summary>    /// 上一页    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void Button9_Click(object sender, EventArgs e)    {        if (this.ReportViewer1.CurrentPage != 1)        {            this.ReportViewer1.CurrentPage--;        }    }    /// <summary>    /// 下一页    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void Button10_Click(object sender, EventArgs e)    {        if (this.ReportViewer1.CurrentPage != this.ReportViewer1.LocalReport.GetTotalPages())        {            this.ReportViewer1.CurrentPage++;        }    }    /// <summary>    /// 尾页    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void Button11_Click(object sender, EventArgs e)    {        this.ReportViewer1.CurrentPage = this.ReportViewer1.LocalReport.GetTotalPages();    }    /// <summary>    /// 缩放    /// </summary>    /// <param name="sender"></param>    /// <param name="e"></param>    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)    {        this.ReportViewer1.ZoomMode = ZoomMode.Percent;        this.ReportViewer1.ZoomPercent = Convert.ToInt32(this.DropDownList1.SelectedValue);    }

 

导出文件

  protected void Button3_Click(object sender, EventArgs e)    {        ExportFile(FileType.PDF, "out.pdf");    }    protected void Button4_Click(object sender, EventArgs e)    {        ExportFile(FileType.Image, "out.jpeg");//这里可以使用任意的图片格式  只要修改out.jpeg为其他格式的名字就可以了    }    protected void Button5_Click(object sender, EventArgs e)    {        ExportFile(FileType.Excel, "out.xls");    }    protected void Button6_Click(object sender, EventArgs e)    {        ExportFile(FileType.Word, "out.doc");    }    #region 導出文件    private void ExportFile(FileType ft, string filename)    {        CreateFile(ft, filename);        string strPath = Server.MapPath(filename);        DownloadFile(strPath, filename);    }    private void CreateFile(FileType ft, string filename)    {        Warning[] warnings;        string[] streamids;        string mimeType;        string encoding = "utf-8";        string extension;        byte[] bytes = this.ReportViewer1.LocalReport.Render(ft.ToString(), null, out mimeType,                       out encoding, out extension, out streamids, out warnings);        FileStream fs = new FileStream(HttpContext.Current.Server.MapPath(filename), FileMode.Create);        fs.Write(bytes, 0, bytes.Length);        fs.Close();        fs.Dispose();    }    public void DownloadFile(string path, string name)    {        try        {            System.IO.FileInfo file = new System.IO.FileInfo(path);            Response.Clear();            Response.Charset = "utf-8";            Response.ContentEncoding = System.Text.Encoding.UTF8;            // 添加头信息，为"文件下载/另存为"对话框指定默认文件名            Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(name));            // 添加头信息，指定文件大小，让浏览器能够显示下载进度            Response.AddHeader("Content-Length", file.Length.ToString());            // 指定返回的是一个不能被客户端读取的流，必须被下载            Response.ContentType = "application/octet-stream";            // 把文件流发送到客户端            Response.WriteFile(file.FullName);            // 停止页面的执行             HttpContext.Current.ApplicationInstance.CompleteRequest();        }        catch (Exception ex)        {            Response.Write("<script>alert('系统出现以下错误://n" + ex.Message + "!//n请尽快与管理员联系.')</script>");        }    }

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