public ActionResult Password(UserPasswordModel model)
        {
            User user = Example.Web.Data.User.AsQueryable().Where(x => x._id == model.Id).FirstOrDefault();

            if (user != null)
            {
                user.PasswordHash = FormsAuthentication.HashPasswordForStoringInConfigFile(model.Password, "sha1");

                user.Save();

                return RedirectToAction("Index");
            }

            return HttpNotFound();
        }
        public ActionResult Password(UserQueryModel query_model)
        {
            User user = Example.Web.Data.User.AsQueryable().Where(x => x._id == query_model.Id).FirstOrDefault();

            if (user != null)
            {
                UserPasswordModel model = new UserPasswordModel();

                model.Id = user._id;
                model.Username = user.Username;

                return View(model);
            }

            return HttpNotFound();
        }