Download Excel file via AJAX MVC

Question

I have a large(ish) form in MVC.

I need to be able to generate an excel file containing data from a subset of that form.

The tricky bit is that this shouldn

Answer 1

using ClosedXML.Excel;

   public ActionResult Downloadexcel()
    {   
        var Emplist = JsonConvert.SerializeObject(dbcontext.Employees.ToList());
        DataTable dt11 = (DataTable)JsonConvert.DeserializeObject(Emplist, (typeof(DataTable)));
        dt11.TableName = "Emptbl";
        FileContentResult robj;
        using (XLWorkbook wb = new XLWorkbook())
        {
            wb.Worksheets.Add(dt11);
            using (MemoryStream stream = new MemoryStream())
            {
                wb.SaveAs(stream);
                var bytesdata = File(stream.ToArray(), "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "myFileName.xlsx");
                robj = bytesdata;
            }
        }


        return Json(robj, JsonRequestBehavior.AllowGet);
    }

Answer 2

On Submit form

public ActionResult ExportXls()
{   
 var filePath="";
  CommonHelper.WriteXls(filePath, "Text.xls");
}

 public static void WriteXls(string filePath, string targetFileName)
    {
        if (!String.IsNullOrEmpty(filePath))
        {
            HttpResponse response = HttpContext.Current.Response;
            response.Clear();
            response.Charset = "utf-8";
            response.ContentType = "text/xls";
            response.AddHeader("content-disposition", string.Format("attachment; filename={0}", targetFileName));
            response.BinaryWrite(File.ReadAllBytes(filePath));
            response.End();
        }
    }