Question

I have a link as follows.

@Html.ActionLink("Create Report", "Screenreport", "Reports", null, new { @class = "subNavA AddBorderTop", id = "screenReport", title = "Create Report" })

Once the link is clicked, I have a the following jQuery code which creates a JSON object and post the information.

$().ready(function () {

   // Create Report fron the screen data
   $("#screenReport").live("click", function (event) { GenerateScreenReport(this, event); });

}) /* end document.ready() */

function GenerateScreenReport(clikedtag, event) {

   var table = $(".EvrakTable").html();
   var screendata = tableParser(table);
   var Screentable = { Screenlist: screendata };

   var myurl = $(clikedtag).attr("href");
   var title = $(clikedtag).attr("title");


   $.ajax({ 
      url: myurl,
      type: 'POST',
      data: JSON.stringify(Screentable),
      dataType: 'json',
      contentType: 'application/json',
      success: function () { alert("Got it"); }
   }); 

};

To Handle JSON I have the following two classes. Realize two classes in the same namespace

namespace MyProject.ViewModels
{
   public class Screenrecord
   {
      public string Fname{ get; set; }
      public string LName { get; set; }
      public string Age { get; set; }
      public string DOB { get; set; }
   }


   public class Screentable
   {
      public List<Screenrecord> Screenlist { get; set; } 
   }
}

ANd in my controller, I have the following code:

   [HttpPost]
   public FileStreamResult Screenreport(Screentable screendata)
   {
      MemoryStream outputStream = new MemoryStream();
      MemoryStream workStream = new MemoryStream();
      Document document = new Document();
      PdfWriter.GetInstance(document, workStream);
      document.Open();
      document.Add(new Paragraph("Hello World"));
      document.Add(new Paragraph(DateTime.Now.ToString()));
      document.Close();

      byte[] byteInfo = workStream.ToArray();
      outputStream.Write(byteInfo, 0, byteInfo.Length);
      outputStream.Position = 0;

      return new FileStreamResult(outputStream, "application/pdf");

   }

This code is supposed to gerate PDF.
if I leave [HttpPost] as it is, it does NOT generate PDF and it goes to /Screenreport page, however I see my JSON is passed to the controller properly.
(screendata is populated properly – in controller)

But if I comment out [HttpPost], it DOES generate a PDF but screendata (in controller) is null.

Can someone please explain whats’s going on and help me figure it out. Thanksin advance.

Answer 1

I feel obligated to post my answer since I didn’t hear from anyone. I ended up creating a form that includes a hidden input, then saved my json object in the hidden input and then submit the form. This time I will get input as an string not a json or xml.

var $hidInput = $("#dataToReport"); 
$hidInput.val(JSON.stringify(Screentable)); 
$('#frmScreenreport').submit(); 

Thanks all anyways.