WinFormVS2023下ReportViewer的自动打印原码

本文格式为Word版，下载可任意编辑——WinFormVS2023下ReportViewer的自动打印原码WinForm+VS2023下ReportViewer的自动打印原码

usingSystem;

usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Text;

usingSystem.Windows.Forms;usingControlLib;

usingSystem.Drawing.Printing;

usingMicrosoft.Reporting.WinForms;usingSystem.IO;

usingSystem.Drawing.Imaging;

namespaceReportLib{

publicpartialclassCrystalForm:Form{

privatestring_reportname=\;privateDataSet_datasource=null;privatestring_autoprint=\;privateIListm_streams;privateintm_currentPageIndex;

publicCrystalForm(stringreportname,DataSetdatasource,stringp1){

_reportname=reportname;_datasource=datasource;_autoprint=p1;

InitializeComponent();}

privatevoidCrystalForm_Load(objectsender,EventArgse){

this.reportViewer1.LocalReport.ReportEmbeddedResource=_reportname;this.reportViewer1.LocalReport.DataSources.Clear();if(_datasource!=null){foreach(DataTabletablein_datasource.Tables){this.reportViewer1.LocalReport.DataSources.Add(newMicrosoft.Reporting.WinForms.ReportDataSource(table.TableName,table));}}

this.reportViewer1.RefreshReport();if(_autoprint==\){

PPrint();}}

#region报表自打印publicvoidPPrint(){

try{LocalReportreport=this.reportViewer1.LocalReport;Export(report);m_currentPageIndex=0;NBPrint();if(m_streams!=null){foreach(Streamstreaminm_streams)stream.Close();m_streams=null;}}

catch(Exceptionex){MessageBox.Show(\在打印过程中出现异常!\+ex.Message.ToString());}}

privatevoidExport(LocalReportreport){

//7.5in3.66in0000当前设置为A4纵向stringdeviceInfo=\+

\EMF\+\20.7cm\+\28cm\+\0in\+\0in\+\0in\+\0in\+\;Warning[]warnings;

m_streams=newList();

report.Render(\,deviceInfo,CreateStream,outwarnings);

foreach(Streamstreaminm_streams){stream.Position=0;}}

privatevoidNBPrint(){

if(m_streams==null||m_streams.Count==0)return;

PrintDocumentprintDoc=newPrintDocument();

if(!printDoc.PrinterSettings.IsValid){stringmsg=String.Format(\,\默认打印机!\);MessageBox.Show(msg,\找不到默认打印机\);return;}

printDoc.PrintPage+=newPrintPageEventHandler(PrintPage);printDoc.Print();this.Close();}

privateStreamCreateStream(stringname,stringfileNameExtension,Encodingencoding,stringmimeType,boolwillSeek){

stringfilenameext=DateTime.Now.Year.ToString()+DateTime.Now.Day.ToString()+DateTime.Now.Month.ToString()+DateTime.Now.Hour.ToString()+DateTime.Now.Minute.ToString()+DateTime.Now.Second.ToString();Streamstream=newFileStream(name+\+fileNameExtension,FileMode.Create);m_streams.Add(stream);returnstream;}

privatevoidPrintPage(objectsender,PrintPageEventArgsev){

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