Resolve the RDLC report to bring the printing, pop-up printing interface, often must press two times to print before execution

This period of time to do the report, with the RDLC customer always response, print to press several times to print, their own test, found that there is a problem, it seems that the printing is in the pop-up print window, the first click is the current form activated, the second click will really trigger the printing event, query: http:/ /msdn.microsoft.com/zh-cn/library/ms252091 (v=vs.100). aspx

Modified the inside several places, as follows:

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;using system.drawing;namespace  ymparking.parkingmg{    public class print    {         int m_currentPageIndex;         IList<Stream> m_streams;        //  Summary:         //      provides a flow for the  ReportViewer  control to render.         //        //  return Results The:        //     reportviewer  control can write data to the  Stream  objects.     &Nbsp;   private stream createstream (string name,           string fileNameExtension, Encoding encoding,           string mimetype, bool willseek)          {            stream  stream = new memorystream ();             m_streams. ADD (Stream);            return stream;         }        /// < summary>        ///  Export the report file in a specified format          /// </summary>        /// < param Name= "Report" > Reporting file </param>        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]);             rectangle adjustedrect = new rectangle (                 ev. pagebounds.left -  (int) EV. pagesettings.hardmarginx,                 ev. pagebounds.top -  (int) ev. pagesettings.hardmarginy,                 ev. pagebounds.width,                 ev. Pagebounds.height);             ev. Graphics.FillRectangle (Brushes.white, adjustedrect);             ev. Graphics.DrawImage (Pageimage, adjustedrect);             m_currentpageindex++;            ev. hasmorepages =  (M_currentpageindex < m_streams. Count);         }        /// <summary>        ///  Printing          /// </summary>         /// <param name= "Isshowprint" > whether to eject the print window </param>         private void printfiel (Bool isshowprint)          {            if  (m_streams ==  null | |  m_streams. count == 0)                  throw new exception ("Specified print file error");             PrintDocument document;             if  (Isshowprint)             {                                PrintDialog pd =  New printdialog ();                 if  (PD. ShowDialog ()  == dialogresult.ok)                  {                     document = new printdocument ();    &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;PD. document = document;                 }                 else                {                      return;                }             }             else             {                 Document = new printdocument ();             }            if  (!document. Printersettings.isvalid)             {         &nBsp;       throw new exception ("Error connecting printer");             }             else            {                 document. Printpage += new printpageeventhandler (PrintPage);                 m_currentPageIndex = 0;                 document. Print ();            }         }        public void run (LocalReport  report, bool isshowprint)         {                         export (report);             printfiel (isshowprint);         }         public void dispose ()          {            if  (m_streams  != null)             {                 foreach  (Stream stream  in m_streams)                      stream. Close ();                 m_streams = null;             }        }    }}

Write this common class, rewrite the ReportViewer Print event,

private void Reportviewer1_print (object sender, CancelEventArgs e)

{

E.cancel = true;

Print pt = new print ();

Pt. Run (Reportviewer1.localreport, true);

}

By this point, the problem has been solved.

This article is from the "Warm Dream scar" blog, please be sure to keep this source http://317057112.blog.51cto.com/1361376/1604758

Resolve the RDLC report to bring the printing, pop-up printing interface, often must press two times to print before execution