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sending a .rdlc report to printer directly without viewing it.

Hello Friends i m stuck up to a place wherein i want to print a report which is displaying on a reportviewer.

I actually want to send the report to printer directly without viewing it.

i am using a code for the same which i m posting here. I am getting an error on the line wherein i m rendering the report.

the error is " a window handle is not created for the control"

My code is :


using System;
using System.IO;
using System.Data;
using System.Text;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.Collections.Generic;
using System.Windows.Forms;
using Microsoft.Reporting.WinForms;

public class Demo : IDisposable
{
private int m_currentPageIndex;
private IList<Stream> m_streams;

private DataTable LoadSalesData()
{
// Create a new DataSet and read sales data file
// data.xml into the first DataTable.
DataSet dataSet = new DataSet();
dataSet.ReadXml(@"..\..\data.xml");
return dataSet.Tables[0];
}
// Routine to provide to the report renderer, in order to
// save an image for each page of the report.
private Stream CreateStream(string name,
string fileNameExtension, Encoding encoding,
string mimeType, bool willSeek)
{
Stream stream = new FileStream(@"..\..\" + name +
"." + fileNameExtension, FileMode.Create);
m_streams.Add(stream);
return stream;
}
// Export the given report as an EMF (Enhanced Metafile) file.
private void Export(LocalReport report)
{
string deviceInfo =
"<DeviceInfo>" +
" <OutputFormat>EMF</OutputFormat>" +
" <PageWidth>8.5in</PageWidth>" +
" <PageHeight>11in</PageHeight>" +
" <MarginTop>0.25in</MarginTop>" +
" <MarginLeft>0.25in</MarginLeft>" +
" <MarginRight>0.25in</MarginRight>" +
" <MarginBottom>0.25in</MarginBottom>" +
"</DeviceInfo>";
Warning[] warnings;
m_streams = new List<Stream>();
report.Render("Image", deviceInfo, CreateStream, out warnings); foreach (Stream stream in m_streams)
stream.Position = 0;
}
// Handler for PrintPageEvents
private void PrintPage(object sender, PrintPageEventArgs ev)
{
Metafile pageImage = new
Metafile(m_streams[m_currentPageIndex]);
ev.Graphics.DrawImage(pageImage, ev.PageBounds);
m_currentPageIndex++;
ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
}

private void Print()
{
const string printerName =
"Microsoft Office Document Image Writer";
if (m_streams == null || m_streams.Count == 0)
return;
PrintDocument printDoc = new PrintDocument();
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 += new PrintPageEventHandler(PrintPage);
printDoc.Print();
}
// Create a local report for Report.rdlc, load the data,
// export the report to an .emf file, and print it.
private void Run()
{
LocalReport report = new LocalReport();
report.ReportPath = @"..\..\Report.rdlc";
report.DataSources.Add(
new ReportDataSource("Sales", LoadSalesData()));
Export(report);
m_currentPageIndex = 0;
Print();
}

public void Dispose()
{
if (m_streams != null)
{
foreach (Stream stream in m_streams)
stream.Close();
m_streams = null;
}
}

}



the code in bold is the place i am getting error ......please help me please i m badly stuck..

Thanks
Oct 10 '08 #1
0 3728

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