如何在没有预览的情况下打印Reportviewer
问题描述：
我是新来的c＃，目前正在制作POS应用程序女巫可以打印收据。我使用reportviewer组件创建收据。我正在工作。但我无法直接传递打印命令。当它是预览我必须按Print Button manually.，但我需要自动打印without a preview.这里是我的代码的开始。有没有什么办法与PrintDocument或我怎么能自动打印此reportviewer绑定这个repotviewr如何在没有预览的情况下打印Reportviewer
打开FormReceipt
DateTime thisDay = DateTime.Today;
FormReceipt frmReceipt = new FormReceipt(order, String.Format("{0:n}", totalAmmount), String.Format("{0:n}", paidammount), String.Format("{0:n}",change), thisDay.ToString("g"), discount.ToString());
frmReceipt.ShowDialog();
设置参数和绑定源
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Drawing.Printing;
using Microsoft.Reporting.WinForms;
namespace Pos
{
public partial class FormReceipt : MetroFramework.Forms.MetroForm
{
List<Receipt> _list;
string _total, _cash, _change, _date, _user, _discount;
public FormReceipt(List<Receipt> datasource, string total,string cash, string change, string date, string discount)
{
InitializeComponent();
_list = datasource;
_total = total;
_cash = cash;
_change = change;
_date = date;
_user = Sessiondata.user;
_discount = discount;
}
private void FormReceipt_Load(object sender, EventArgs e)
{
ReceiptBindingSource.DataSource = _list;
Microsoft.Reporting.WinForms.ReportParameter[] para = new Microsoft.Reporting.WinForms.ReportParameter[]{
new Microsoft.Reporting.WinForms.ReportParameter("pTotal",_total),
new Microsoft.Reporting.WinForms.ReportParameter("pCash",_cash),
new Microsoft.Reporting.WinForms.ReportParameter("pChange",_change),
new Microsoft.Reporting.WinForms.ReportParameter("pDate",_date),
new Microsoft.Reporting.WinForms.ReportParameter("pUser",_user),
new Microsoft.Reporting.WinForms.ReportParameter("pItems",_list.Count.ToString()),
new Microsoft.Reporting.WinForms.ReportParameter("pDiscount",_discount+"%")
};
this.reportViewer1.LocalReport.SetParameters(para);
this.reportViewer1.RefreshReport();
}
private void reportViewer1_Load(object sender, EventArgs e)
{
}
}
}
答
我发布我的代码工作正常，因为你想要的。检查此代码并根据需要在代码中进行自定义。
List<Receipt> _list;
string _total, _cash, _change, _date, _user, _discount;
public FormReceipt(List<Receipt> datasource, string total,string cash, string change, string date, string discount)
{
InitializeComponent();
_list = datasource;
_total = total;
_cash = cash;
_change = change;
_date = date;
_user = Sessiondata.user;
_discount = discount;
}
private void FormReceipt_Load(object sender, EventArgs e)
{
ReceiptBindingSource.DataSource = _list;
Microsoft.Reporting.WinForms.ReportParameter[] para = new Microsoft.Reporting.WinForms.ReportParameter[]{
new Microsoft.Reporting.WinForms.ReportParameter("pTotal",_total),
new Microsoft.Reporting.WinForms.ReportParameter("pCash",_cash),
new Microsoft.Reporting.WinForms.ReportParameter("pChange",_change),
new Microsoft.Reporting.WinForms.ReportParameter("pDate",_date),
new Microsoft.Reporting.WinForms.ReportParameter("pUser",_user),
new Microsoft.Reporting.WinForms.ReportParameter("pItems",_list.Count.ToString()),
new Microsoft.Reporting.WinForms.ReportParameter("pDiscount",_discount+"%")
};
this.reportViewer1.LocalReport.SetParameters(para);
this.reportViewer1.RefreshReport();
Export(ReportViewer1.LocalReport, false);
Print();
Dispose();
}
private int m_currentPageIndex;
private IList<Stream> 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, bool isLandscape)
{
string deviceInfo = string.Empty;
if (isLandscape)
{
deviceInfo =
@"<DeviceInfo>
<OutputFormat>EMF</OutputFormat>
<PageWidth>11in</PageWidth>
<PageHeight>8.5in</PageHeight>
<MarginTop>0.25in</MarginTop>
<MarginLeft>0.25in</MarginLeft>
<MarginRight>0.25in</MarginRight>
<MarginBottom>0.25in</MarginBottom>
</DeviceInfo>";
}
else
{
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>();
// Create Report DataSource
ReportDataSource rds = new ReportDataSource();
rds.Value = _list;
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(rds);
report.Render("Image", deviceInfo, CreateStream,
out warnings);
foreach (Stream stream in m_streams)
stream.Position = 0;
}
private void Print()
{
PrinterSettings settings = new PrinterSettings(); //set printer settings
string printerName = settings.PrinterName; //use default printer name
if (m_streams == null || m_streams.Count == 0)
throw new Exception("Error: no stream to print.");
PrintDocument printDoc = new PrintDocument();
if (!printDoc.PrinterSettings.IsValid)
{
Response.Write("<script>alert('" + printerName + "')</script>");
}
else
{
printDoc.PrintPage += new PrintPageEventHandler(PrintPage);
m_currentPageIndex = 0;
printDoc.Print();
}
}
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);
}
public void Dispose()
{
if (m_streams != null)
{
foreach (Stream stream in m_streams)
stream.Close();
m_streams = null;
}
}