ASP.Net MVC ItextSharp: PDF file not downloading when calling action by jquery[Answered] RSS

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  dev_dona

  Member

  39 Points

  73 Posts

  ASP.Net MVC ItextSharp: PDF file not downloading when calling action by jquery

  Sep 10, 2018 05:57 PM|dev_dona|LINK

  When i click a button then bootstrap popup comes where a button exist for download data as pdf. when button clicked on bootstrap popup then below code fire and call server side action.

  $(".bol_save_as_pdf").click(function () {
  $.ajax({
  type: "GET",
  url: '@Url.Action("GeneratePDF", "TestModal")',
  success: function (data) {
  alert(data.Msg);
  },
  error: function (xhr, status, error) {
  //$("#dataDiv").html("Result: " + status + " " + error + " " + xhr.status + " " + xhr.statusText)
  }
  });
  return false;
  });

  
  Server side action execute properly but no pdf download dialog appear but when i invoke the same action putting in browser url then pdf download at client side.

  see my server side action code

  [Route("DownloadPDF")]
  [HttpGet]
  public void DownloadPDF()
  {
  //bool IsPdfGenerated = false;
  
  List<Student> studentsVM = new List<Student>
  {
  new Student {ID=1,FirstName="Joy", LastName="Roy", FavouriteGames="Hocky"},
  new Student {ID=2,FirstName="Raja", LastName="Basu", FavouriteGames="Cricket"},
  new Student {ID=3,FirstName="Ajay", LastName="saha",FavouriteGames="Foot Ball"},
  new Student {ID=4,FirstName="Debu", LastName="Saha", FavouriteGames="Tennis"},
  new Student {ID=5,FirstName="Sanjeeb", LastName="Das", FavouriteGames="Hocky"},
  };
  
  var viewToString = StringUtilities.RenderViewToString(ControllerContext, "~/Views/Shared/_Report.cshtml", studentsVM, true);
  string filepath = HttpContext.Server.MapPath("~/PDFArchives/") + "mypdf.pdf";
  
  MemoryStream workStream = new MemoryStream();
  StringReader sr = new StringReader(viewToString);
  Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 30f, 0f);
  PdfWriter writer = PdfWriter.GetInstance(pdfDoc, System.Web.HttpContext.Current.Response.OutputStream);
  //writer.CloseStream = false;
  pdfDoc.Open();
  XMLWorkerHelper.GetInstance().ParseXHtml(writer, pdfDoc, sr);
  pdfDoc.Close();
  
  System.Web.HttpContext.Current.Response.ContentType = "pdf/application";
  System.Web.HttpContext.Current.Response.AddHeader("content-disposition", "attachment;" +
  "filename=sample.pdf");
  System.Web.HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
  System.Web.HttpContext.Current.Response.Write(pdfDoc);
  System.Web.HttpContext.Current.Response.End();
  }

  what is wrong in my approach ?

  pdf download box not coming because i am using bootstrap popup ? looking for guide line. thaks

• • Reply
  bruce (sqlwo...

  All-Star

  57534 Points

  15322 Posts

  Re: ASP.Net MVC ItextSharp: PDF file not downloading when calling action by jquery

  Sep 10, 2018 07:16 PM|bruce (sqlwork.com)|LINK

  In the ajax success function, the parameter named data, should be the pdf file. If you convert to a blob, assign as a dataurl to an anchor, then click the anchor, the browser will save it. But in you case it much easier to assign the url to a hidden anchor, then click with jQuery.
  bruce (sqlwork.com)