Print the local report without previewing

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; Public   Class Demo: idisposable { Private  Int M_currentpageindex; Private Ilist <stream> m_streams; Private Datatable loadsalesdata (){ // Create a new dataset and read sales data file          // Data. xml into the first datatable. Dataset dataset = New Dataset (); dataset. readxml ( @ ".. \ Data. xml" ); Return Dataset. Tables [0];} // Routine to provide to the report Renderer, In order     // Save an image for each page of the report.      Private Stream createstream ( String Name, String Filenameextension, encoding, String Mimetype, Bool Willseek) {stream = New Memorystream (); m_streams.add (Stream ); Return Stream ;} // Export the given report as an EMF (Enhanced Metafile) file.      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]); // Adjust rectangular area with printer margins. Rectangle adjustedrect = New Rectangle (EV. pagebounds. Left -(Int ) EV. pagesettings. hardmargds, 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 ();}} // Create a local report for report. rdlc, load the data,      // Export the report to an. EMF file, and print it.      Private   Void Run () {localreport report = New Localreport (); report. reportpath = @ ".. \ Report. rdlc" ; Report. CES. Add ( New Reportdatasource ( "Sales" , Loadsalesdata (); export (report); print ();} Public   Void Dispose (){ If (M_streams! = Null ){ Foreach (Stream stream In M_streams) stream. Close (); m_streams = Null ;}} Public   Static   Void Main ( String [] ARGs ){Using (Demo demo = New Demo () {demo. Run ();}}}

 Article Source: http://msdn.microsoft.com/zh-cn/library/ms252091 (V = vs.100). aspx