jQuery, Entity Framework and ASP.NET MVC

<input type="text" id="mpvalue" name="mpvalue" />

<script type="text/javascript">

    $(document).ready(function () {

        $('#mpvalue').autocomplete({

            source: '@Url.Action("GetMP")'

        });

    })

</script>

public ActionResult Index()

     {

        

           return View();

     }

public ActionResult GetMP(string term)

      {

         var result = from r in _db.GetMPDetails()

                         where r.Name.ToLower().Contains(term)

                         select r.Name;          

            return Json(result, JsonRequestBehavior.AllowGet);

        }