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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Reporting.WinForms;
using System.Reflection;
using System.Drawing.Printing;
using System.IO;
using System.Drawing.Imaging;
using System.Drawing;
namespace YourApp
{
public static class PrintReport{
private static int m_currentPageIndex;
private static IList<Stream> m_streams;
public static Stream CreateStream(string name,
string fileNameExtension, Encoding encoding,
string mimeType, bool willSeek)
{
Stream stream = new MemoryStream();
m_streams.Add(stream);
return stream;
}
public static void Export(LocalReport report, bool print = true)
{
string deviceInfo =
@"<DeviceInfo>
<OutputFormat>EMF</OutputFormat>
<PageWidth>6.2in</PageWidth>
<PageHeight>8.3in</PageHeight>
<MarginTop>0.1in</MarginTop>
<MarginLeft>0.1in</MarginLeft>
<MarginRight>0.1in</MarginRight>
<MarginBottom>0.1in</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;
if (print)
{
Print();
}
}
// Handler for PrintPageEvents
public static void PrintPage(object sender, PrintPageEventArgs ev)
{
Metafile pageImage = new
Metafile(m_streams[m_currentPageIndex]);
// Adjust rectangular area with printer margins.
Rectangle adjustedRect = new Rectangle(
ev.PageBounds.Left - (int)ev.PageSettings.HardMarginX,
ev.PageBounds.Top - (int)ev.PageSettings.HardMarginY,
ev.PageBounds.Width,
ev.PageBounds.Height);
// Draw a white background for the report
ev.Graphics.FillRectangle(Brushes.White, adjustedRect);
// Draw the report content
ev.Graphics.DrawImage(pageImage, adjustedRect);
// Prepare for the next page. Make sure we haven't hit the end.
m_currentPageIndex++;
ev.HasMorePages = (m_currentPageIndex < m_streams.Count);
}
public static void Print()
{
if (m_streams == null || m_streams.Count == 0)
throw new Exception("Error: no stream to print.");
PrintDocument printDoc = new PrintDocument();
if (!printDoc.PrinterSettings.IsValid)
{
throw new Exception("Error: cannot find the default printer.");
}
else
{
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_currentPageIndex = 0;
printDoc.Print();
}
}
public static void PrintToPrinter(this LocalReport report)
{
Export(report);
}
public static void DisposePrint()
{
if (m_streams != null)
{
foreach (Stream stream in m_streams)
stream.Close();
m_streams = null;
}
}
}
}
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