c# - create pdf from current page ASP.NET -

i want create pdf current page on button click. code looks that:

protected void btnsave_click(object sender, eventargs e) {                 renderpdf = true; }  protected override void render(htmltextwriter writer)     {         if (renderpdf == true)         {             dtanswer = taanswer.getdata();             memorystream mem = new memorystream();             streamwriter twr = new streamwriter(mem);             htmltextwriter mywriter = new htmltextwriter(twr);             base.render(mywriter);             mywriter.flush();             mywriter.dispose();             streamreader strmrdr = new streamreader(mem);             //strmrdr.basestream.position = 3300;             //string pagecontent = strmrdr.readtoend();             //strmrdr.dispose();             //mem.dispose();             //writer.write(pagecontent);              //createpdfdocument(pagecontent);              stringbuilder sb = new stringbuilder();             sb.append("<table border='1' width='100%' style='font-size:11px; font-weight:bold; border-collapse:collapse; font-family: arial, 'lucida sans unicode', sans-serif; '>");             sb.append("<tr>");             sb.append("<td style='background-color:red; text-align:center;' colspan ='3'>maxon motor</td>");             sb.append("</tr>");             sb.append("<tr>");             sb.append("<td width='18%'><p>maxon motor ag</p><p>sachseln</p></td>");             sb.append("<td width ='64%' style='text-align:center'><p>vorstellungsgespräch</p></td>");             sb.append("<td width='18%'><p>seite</p></td>");             sb.append("</tr>");             sb.append("</table>");              sb.append("<br /><br />");             sb.append("<table style=\"width:100%;font-weight:bold;border-collapse:collapse; font-family: arial, 'lucida sans unicode', sans-serif;\">");             sb.append("<tr>");             sb.append("<td><p>name / vorname:</p></td>");             sb.append("<td></td>");             sb.append("</tr>");             sb.append("<tr>");             sb.append("<td><p>geb. datum:</p></td>");             sb.append("<td></td>");             sb.append("</tr>");             sb.append("<tr>");             sb.append("<td><p>offene stelle zugewiesen:</p></td>");             sb.append("<td></td>");             sb.append("</tr>");             sb.append("<tr>");             sb.append("<td><p>gesprächsteilnehmer:</p></td>");             sb.append("<td></td>");             sb.append("</tr>");             sb.append("</table>");             sb.append("<br /><br />");              sb.append("<div>");             (int = 0; < pquestions.controls.count; i++)             {                 string sname = "lbl" + pquestions.controls[i].id.substring(3, pquestions.controls[i].id.length - 3);                 if (pquestions.controls[i].id == sname)                 {                     if (!pquestions.controls[i].id.contains(","))                     {                         string sblockname = pquestions.controls[i].id.substring(3, pquestions.controls[i].id.length - 3);                         sb.append("<p><b>" + sblockname + "</b></p>");                         sb.append("<br />");                         (int t = 0; t < pquestions.controls.count; t++)                         {                             if (pquestions.controls[t].id.contains(sblockname))                             {                                 if (pquestions.controls[t].id.contains("lbl") && pquestions.controls[t].id != pquestions.controls[i].id)                                 {                                     sb.append("<p>" + ((label)(pquestions.controls[t])).text + "</p>");                                     sb.append("<br />");                                 }                                 else if (pquestions.controls[t].id.contains("txt"))                                 {                                     if (((textbox)(pquestions.controls[t])).text != "")                                     {                                         sb.append("<p>" + ((textbox)(pquestions.controls[t])).text + "</p>");                                         sb.append("<br />");                                     }                                     else                                     {                                         sb.append("<br /><br /><br /><br />");                                     }                                 }                             }                         }                     }                 }             }             sb.append("</div>");              stringreader sr = new stringreader(sb.tostring());             string rr= sb.tostring();             createpdfdocument(rr);         }         else         {             system.text.stringbuilder sb = new system.text.stringbuilder();             htmltextwriter tw = new htmltextwriter(new stringwriter(sb));             base.render(tw);             // captured markup string             string pagesource = tw.tostring();             //get rendered content             string scontent = sb.tostring();             //now output page, if want             writer.write(scontent);         }     }  public void createpdfdocument(string strhtml)         {             string strhtmlpath = "c:\\myhtml.html";             streamwriter strwriter = new streamwriter(strhtmlpath, false, system.text.encoding.utf8);             strwriter.write(strhtml);             strwriter.close();             string strfilename = "c:\\map1.pdf";             // step 1: creation of document-object             document document = new document();             // step 2:             // create writer listens document             pdfwriter.getinstance(document, new filestream(strfilename, filemode.create));             stringreader se = new stringreader(strhtml);             textreader tr = new streamreader("c:\\myhtml.html");              //add collection document             document.open();             htmlworker worker = new htmlworker(document);              worker.startdocument();              //// step 5: parse html document             worker.parse(tr);              //// step 6: close document , worker             worker.enddocument();              //worker.parse(tr); // getting error "illegal characters in path"             document.close();             showpdf(strfilename);         }  public void showpdf(string strfilename)             {                 response.clearcontent();                 response.clearheaders();                 response.addheader("content-disposition", "inline;filename=" + strfilename);                 response.contenttype = "application/pdf";                 response.writefile(strfilename);                 response.flush();                 response.clear();             }   

now, problem is, want create e pdf 1 part of page , not whole page. how can realize that?

thanks lot! sarah

you have create string congaing html want see in pdf css not applied through class. applying css have write inline-css dom elements. can below

            string = "pdf contents in html format";             stringreader sr = new stringreader(sb.tostring());              document pdfdoc = new document(pagesize.a4, 10f, 10f, 10f, 0f);             htmlworker htmlparser = new htmlworker(pdfdoc);             using (memorystream memorystream = new memorystream())             {                 pdfwriter writer = pdfwriter.getinstance(pdfdoc, memorystream);                 pdfdoc.open();                 htmlparser.parse(sr);                 pdfdoc.close();                 byte[] bytes = memorystream.toarray();                 memorystream.close();            } 

for more info visit this

hope helpfull