在IIS模式下，在web应用程序中打印不带预览的rdlc报告

MSDN中有一些代码可以在web应用程序中打印不带预览的rdlc，但当我在IIS中实现时，它不起作用。。。有什么解决办法吗。。。。或任何在rdlc打印时工作而不进行预览的代码这是链接http://msdn.microsoft.com/en-us/library/ms252091.aspx它没有给出任何例外，但也不打印报告在MSDN上，他们说要创建一个控制台应用程序，但我需要在IIS中运行的asp.net web应用程序中创建它。

using System;
using System.IO;
using System.Data;
using System.Text;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.Collections.Generic;
using Microsoft.Reporting.WebForms;
using System.Data.SqlClient;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Windows.Forms;
///<summary>
/// Summary description for Printing
/// this is the cool code found on MSDN site to print labels out without preview
/// abhay maini
///</summary>
publicclassPrinting : IDisposable
{
public Printing()
{
//
// TODO: Add constructor logic here
//
}
publicint m_currentPageIndex;
publicIList<Stream> m_streams;
// Routine to provide to the report renderer, in order to
// save an image for each page of the report.
publicStream CreateStream(string name,string fileNameExtension, Encoding encoding,string mimeType, bool willSeek)
{
string CurrentDrive;
CurrentDrive = Application.StartupPath.ToString();Stream stream = newFileStream("C:''Labels''" + name + "." + fileNameExtension, FileMode.Create);
m_streams.Add(stream);

return stream;
}
publicvoid Export(LocalReport report)
{
string deviceInfo =
"<DeviceInfo>" +
" <OutputFormat>EMF</OutputFormat>" +
" <PageWidth>4.0in</PageWidth>" +
" <PageHeight>2.0in</PageHeight>" +
" <MarginTop>0.00in</MarginTop>" +
" <MarginLeft>0.00in</MarginLeft>" +
" <MarginRight>0.00in</MarginRight>" +
" <MarginBottom>0.00in</MarginBottom>" +
"</DeviceInfo>";
Warning[] warnings;m_streams = newList<Stream>();

report.Render("Image", deviceInfo, CreateStream, out warnings);
foreach (Stream stream in m_streams)
stream.Position = 0;
}
// Handler for PrintPageEvents
publicvoid PrintPage(object sender, PrintPageEventArgs ev)
{
Metafile pageImage = newMetafile(m_streams[m_currentPageIndex]);
ev.Graphics.DrawImage(pageImage, ev.PageBounds);
m_currentPageIndex++;
ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
}
publicvoid Print(string PrinterName)
{
// const string printerName = PrinterName;

if (m_streams == null || m_streams.Count == 0)
return;
PrintDocument printDoc = newPrintDocument();
printDoc.PrinterSettings.PrinterName = PrinterName;
if (!printDoc.PrinterSettings.IsValid)
{
string msg = String.Format(
"Can't find printer '"{0}'".", PrinterName);
MessageBox.Show(msg, "Print Error");return;
}
printDoc.PrintPage += newPrintPageEventHandler(PrintPage);
printDoc.Print();
}
// Create a local report for Report.rdlc, load the data,
// export the report to an .emf file, and print it.
publicvoid Run(string ReportName, string PrinterName, DataTable MyDataTable,string DSstring)
{
LocalReport report = newLocalReport();
report.ReportPath = ReportName;
report.DataSources.Clear();
report.DataSources.Add(newReportDataSource(DSstring, MyDataTable));
Export(report);
m_currentPageIndex = 0;
Print(PrinterName);
}
publicvoid Dispose()
{
if (m_streams != null)
{
foreach (Stream stream in m_streams)
stream.Close();
m_streams = null;
}
}

}


The above class can be called as below behind text change event:

protectedvoid TxtScanId_TextChanged(object sender, EventArgs e)
{
string sqlPrintScanID = "SELECT [ScanID], [LoadID], [tempVRMA], [CustPalletID], [TypeOfAsset] FROM [SerialScanDetail] WHERE [ScanID]=" + TxtScanId.Text + "";
string strConnection = ConfigurationManager.ConnectionStrings["RevisionConnectionString"].ToString();
SqlConnection conn = newSqlConnection(strConnection);
SqlDataAdapter da = newSqlDataAdapter();
da.SelectCommand = newSqlCommand(sqlPrintScanID, conn);
DataSet ds = newDataSet();
da.Fill(ds, "RevisionDataSet_SerialScanDetail");
//ReportViewer1.LocalReport.Refresh();
NewPrinting.Run(@"Reports'Report_ScanID.rdlc", "Eltron 2442", ds.Tables[0], "RevisionDataSet_SerialScanDetail");

}

        ReportViewer reportViewer = new ReportViewer();
        reportViewer.LocalReport.ReportPath = "ReportPath";
        reportViewer.LocalReport.DataSources.Add(new ReportDataSource("data", data));
        byte[] byteInfo;
        byteInfo = reportViewer.LocalReport.Render("Image", deviceInfo, CreateStream, out warnings);
        MemoryStream ms = new MemoryStream(byteInfo);
        Image returnImage = Image.FromStream(ms);