Export data as PDF Using JQuery In ASP.NET MVC

Question

Hello,

I'm actually following http://www.c-sharpcorner.com/article/basic-pdf-export-using-jquery-in-asp-net-mvc-razor/ article to bind data from controllers action to HTML table and then export data from HTML table to iTextSharp pdf viewer. Below i'm binding controllers action method data to html table.

@model List<ExportDataAsPDFAppl.Controllers.Employees>
@using (Html.BeginForm("exportPDF", "Home", FormMethod.Post))
{
    <div>
        <input type="hidden" name="gridHTML" />
        <input type="submit" id="btnExportHTML" name="btnExportHTML" class="btn btn-success" value="Export Pdf" />
    </div>
    <div id="tblEmpData">
        <table class="table table-striped table-condensed">
            <thead>
                <tr>
                    <th>ID</th>
                    <th>FirstName</th>
                    <th>LastName</th>
                    <th>Gender</th>
                    <th>Salary</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var item in Model)
                {
                    <tr>
                        <td>@item.ID</td>
                        <td>@item.FirstName</td>
                        <td>@item.LastName</td>
                        <td>@item.Gender</td>
                        <td>@item.Salary</td>
                    </tr>
                }
            </tbody>
        </table>
    </div>
}

In btnExportHTML jQuery click function, hidden variable gridHTML is binded with HTML table.

<script type="text/javascript">
    $(document).ready(function () {
        $('#btnExportHTML').click(function () {
            debugger;
            $("input[name='gridHTML']").val($("#tblEmpData").html());
        });
    });
</script>

But on export 'btnExportHTML' click, HTTP 404 error is raised.

Below is actionMethod for button click.

[HttpPost]
[ValidateInput(false)]
private FileResult exportPDF(string gridHTML)
{
    StringReader reader = null;
    Document pdfDoc = null;
    PdfWriter write = null;
    try
    {
        using (MemoryStream memorystream = new MemoryStream())
        {
            reader = new StringReader(gridHTML);
            pdfDoc = new Document(PageSize.A4, 5f, 5f, 5f, 5f);
            write = PdfWriter.GetInstance(pdfDoc, memorystream);
            pdfDoc.Open();
            XMLWorkerHelper.GetInstance().ParseXHtml(write, pdfDoc, reader);
            pdfDoc.Close();
            return File(memorystream.ToArray(), "application/pdf", Convert.ToString(DateTime.Now + ".pdf"));
        }

    }
    finally
    {
        reader.Dispose();
        pdfDoc.Dispose();
        write.Dispose();
    }
}

please let me know my mistake to solve this issue.