generate pdf in asp.net page

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Hi,

I need to generate pdf in asp.net page the page contain contentplaceholder i googled and tried the below code but its showing error like this.

>>>Extender control 'Search' is not a registered extender control. Extender controls must be registered using RegisterExtenderControl() before calling RegisterScriptDescriptors().
Parameter name: extenderControl <<<<

in this code im getting error in this line

C#

this.Page.RenderControl(hw);

C#

//code//
Response.ContentType = "application/pdf";
            Response.AddHeader("content-disposition", "attachment;filename=TestPage.pdf");
            Response.Cache.SetCacheability(HttpCacheability.NoCache);
            StringWriter sw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);

            this.Page.RenderControl(hw);

            StringReader sr = new StringReader(sw.ToString());
            Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
            HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
            PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
            pdfDoc.Open();
            htmlparser.Parse(sr);
            pdfDoc.Close();
            Response.Write(pdfDoc);
            Response.End();

Posted 17-Oct-12 18:55pm

dineshdena

Updated 17-Oct-12 19:26pm

ridoy

v3

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Comments

Dee_Bee 18-Oct-12 1:35am

If you want the file to be opened on the client side, your best bet is to create and HTTP Handler and set the appropriate mime type on your response before streaming it out from your handler.

Code to stream a file out to client.

2 solutions

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Dee_Bee · Answer 1 · 2012-10-17T19:35:00

C#

public void ProcessRequest(HttpContext context)
{
   int newsId = int.Parse(context.Session["newsId"].ToString());
   int FK_UnitId = int.Parse(context.Session["UserData"].ToString());
   string dirPathForTextFiles =  ConfigurationManager.AppSettings.GetValues("ThePath").First() + "/" + "NewsTextFiles" + "/" + "UnitNum" + FK_UnitId.ToString() + "_" + "NewsNum" + newsId + "/";
   DataTable UpdatedDateTable = (DataTable)context.Session["theLastUpdatedTextFile"];
   UpdatedDateTable.AcceptChanges();
   context.Session.Add("currentTextFile", UpdatedDateTable);
   List<string> l = new List<string>(UpdatedDateTable.Rows.Count);

   try
   {

      l.Add(dirPathForTextFiles + UpdatedDateTable.Rows[0]["fileName"].ToString());
       context.Response.ContentType = getContentType(dirPathForTextFiles + UpdatedDateTable.Rows[0]["fileName"].ToString());
       using (FileStream fs = new FileStream(l[0], FileMode.Open, FileAccess.Read))
       {
          long chunkSize = fs.Length;
          byte[] buf = new byte[chunkSize];
          int bytesRead = 1;
          bytesRead = fs.Read(buf, 0,(int)chunkSize);
          if (bytesRead > 0) context.Response.OutputStream.Write(buf, 0, buf.Length);
          context.Response.OutputStream.Flush();
      }

  }
  catch (IOException e)
  {
     string message = e.Message;
  }
}

VIPR@T · Answer 2 · 2012-10-17T19:39:00

Solution 2

Hi,

See the below link. It might be help you.

http://www.developerfusion.com/code/5682/create-pdf-files-on-fly-in-c/[^]
Tutorials on creating PDF files using C# 2.0[^]

Thanks,
Viprat

Posted 17-Oct-12 19:39pm

VIPR@T