C# 如何使用c sharp编程调用Microsoft report Viewer的打印按钮
如何使用c夏普代码调用报表查看器的打印按钮C# 如何使用c sharp编程调用Microsoft report Viewer的打印按钮,c#,.net,reportviewer,C#,.net,Reportviewer,如何使用c夏普代码调用报表查看器的打印按钮 以编程方式打印报告,而不首先向用户显示预览。您只需指定打印设备的名称,报告将自动打印,无需用户干预。示例代码如下:。但我需要在报表查看器控件上显示.rdlc文件,并使用自定义按钮打印该报表文件。如何解决此问题?@user1146956:您不必取消按钮或查看器控件。但是,如果您想在没有用户干预的情况下打印报告,那么您应该按照上面的链接建议执行。不要尝试使用代码单击按钮;那是行不通的,谢谢。任何使用此代码的人请进行此小更改。1.将IList更新为IList
以编程方式打印报告,而不首先向用户显示预览。您只需指定打印设备的名称,报告将自动打印,无需用户干预。示例代码如下:。但我需要在报表查看器控件上显示.rdlc文件,并使用自定义按钮打印该报表文件。如何解决此问题?@user1146956:您不必取消按钮或查看器控件。但是,如果您想在没有用户干预的情况下打印报告,那么您应该按照上面的链接建议执行。不要尝试使用代码单击按钮;那是行不通的,谢谢。任何使用此代码的人请进行此小更改。1.将
IList
更新为IList
2。更新m_streams=new List()代码>到m_streams=新列表()代码>3。更新m_currentPageIndex m_streams.Count
至m_currentPageIndex
Ref:Microsoft教程演练:打印本地报告而不预览
directly copy this code in a class called "Printing" and Call the "Run" method with your reportviewer name as parameter. Example obj.Run(reportviewer1);
////////////////////////////////////////////////////////////////////////////////////
using System;
using System.IO;
using System.Data;
using System.Text;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Printing;
using System.Collections.Generic;
using System.Windows.Forms;
using Microsoft.Reporting.WinForms;
class Printing
{
private int m_currentPageIndex;
private IList m_streams;
private Stream CreateStream(string name, string fileNameExtension, Encoding encoding, string mimeType, bool willSeek)
{
Stream stream = new MemoryStream();
m_streams.Add(stream);
return stream;
}
private void Export(LocalReport report)
{
string deviceInfo =
@"
EMF
8.5in
11in
0.25in
0.25in
0.25in
0.25in
";
Warning[] warnings;
m_streams = new List();
report.Render("Image", deviceInfo, CreateStream,
out warnings);
foreach (Stream stream in m_streams)
stream.Position = 0;
}
private 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);
}
private 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 void Run(ReportViewer rpt)
{
Export(rpt.LocalReport);
Print();
}
public void Dispose()
{
if (m_streams != null)
{
foreach (Stream stream in m_streams)
stream.Close();
m_streams = null;
}
}
}