public ActionResult Populate()
        {
            var repo = new MongoRepository<Customer>();
            repo.Collection.Drop();
            string file = Server.MapPath("~/Controllers/interface1.xml");
            var writer = new System.Xml.Serialization.XmlSerializer(typeof(g));
            var wfile = new System.IO.StreamReader(file);
            var o = (g)writer.Deserialize(wfile);

            string file2 = Server.MapPath("~/Controllers/interface2.xml");
            var writer2 = new System.Xml.Serialization.XmlSerializer(typeof(root));
            var wfile2 = new System.IO.StreamReader(file2);
            var o2 = (root)writer2.Deserialize(wfile2);
            var kommuner = o2.län.SelectMany(x => x.kommun).ToList();

            foreach (var customer in o.path)
            {
                string name = "";

                var kommun = kommuner.FirstOrDefault(x => x.kommunkod == customer.id);
                if (kommun != null)
                {
                    name = kommun.kommunnamn;
                }
                var c = new Customer()
                {
                    InternalId = customer.id,
                    IsCustomer = false,
                    Path = customer.d,
                    Name = name
                };
                repo.Add(c);
            }
            return Content("!");
        }
 [HttpPost]         // ekleme gerçekleştirilirse dönderiyor.
 public IActionResult customerAdd(Customer c)
 {
     data.Customers.Add(c);
     data.SaveChanges();
     return(RedirectToAction("Index"));
 }