Vfrdtyky

I have an Autocomplet textbox for my search and when i try Search efter something it give No matches found.i also debugged and i can see value will pass to controller.did i miss something ! Can anyone please help me or point me in to the right direction.
thanks in advance :)

Contoller:

  public ActionResult Sp(string searchString) {



        string EmailID = Session["Email"].ToString();



       var v = (from cbr in db.Contact_Business_Relation

                 join c in db.Contact on cbr.Contact_No_ equals c.Company_No_

                 join sa in db.Sales_Invoice_Header on cbr.No_ equals sa.Sell_to_Customer_No_

                 join sih in db.Sales_Invoice_Line on sa.No_ equals sih.Document_No_





                 where c.E_Mail == EmailID

                 &&

                 sih.Type == 2





                 select new ClosedOrders

                 {

                     SalesInvoiceQuantity = db.Sales_Invoice_Line.Where(l => l.Document_No_ == sa.No_).Select(l => l.Quantity).DefaultIfEmpty(0).Sum(),

                     CreatedDate = sa.Posting_Date,

                     DeliveryAddress = sa.Ship_to_Address + ", " + sa.Ship_to_Post_Code + " " + sa.Ship_to_City + ", " + sa.Ship_to_Country_Region_Code,

                     Reference = sa.External_Document_No_,

                     OrderNumber = sa.Order_No_,

                     Fakturanummer = sa.No_,

                     Total = 0,

                     AntalAfsendteVarer = 0,

                     AntalVarer = 0,

                     varnummer = db.Item_Ledger_Entry.Where(s => s.Item_No_ == sih.No_).Select(s => s.Item_No_).Distinct().ToList(),

                     SerialNoInvoiceOrdrelineDeliveryCloses = db.Item_Ledger_Entry.Where(s => s.Item_No_ == sih.No_ && s.Entry_Type == 1 && s.Source_Type == 1 && s.Document_Type == 1).Select(s => s.Serial_No_).Distinct().ToList()

                 });





        if (!String.IsNullOrEmpty(searchString))

        {

            v = v.Where(s => s.Fakturanummer.Contains(searchString));





        }



        if (!String.IsNullOrEmpty(searchString))

        {

            v = v.Where(s => s.varnummer.Contains(searchString));



        }



        return Json(v, JsonRequestBehavior.AllowGet);

JavaScript:

<div>

    <label>Search</label>

    <input id="searchInput" />



</div>

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>

    <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">

    <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>





    <script>

        $("#searchInput").autocomplete({

            source: function (request, response) {

                $.ajax({



                    url: '@Url.Action("Sp","Account")',

                    dataType: "json",

                    data: { searchString: $("#searchInput").val() },

                    success: function (data) {



                        if (!data.length) {

                            var result = [

                                {

                                    label: 'No matches found',

                                    value: response.term

                                }

                            ];

                            response(result);

                        }

                        else {

                            // normal response

                            response($.map(data, function (item) {

                                return {

                                    label: item.varnummer,

                                    value: item.varnummer

                                }

                            }));

                        }

                    },



                    error: function (xhr, status, error) {

                        alert("Error");

                    }

                });

            }

        });

    </script>