Checkbox does not check when clicked

My model:

    public class TituloPendente
    {
        public int TituloID { get; set; }
        public bool Selecionado { get; set; }
        public string NumeroDoDocumento { get; set; }
        public string NossoNumero { get; set; }
        public DateTime DataDeVencimento { get; set; }
        public decimal Valor { get; set; }
    }

My Home Controller:

    public class HomeController : Controller
    {
        private static readonly object objLock = new object();

        public ActionResult Index()
        {
            List<SyncfusionMvcApplication1.Models.TituloPendente> titulos = new List<Models.TituloPendente>();

            for (int i = 0; i < 100; i++)
            {
                Random rnd = new Random((int)Math.Cos((double)(i + 1)));

                lock (objLock)
                {
                    titulos.Add(new Models.TituloPendente()
                    {
                        TituloID = 1,
                        NumeroDoDocumento = (i + 1 * 8454548).ToString(),
                        NossoNumero = (i + 1 * 6544456).ToString(),
                        DataDeVencimento = DateTime.Now.AddDays(i),
                        Valor = (decimal)((15.02m * (i + 1)) + (decimal)((double)((i + 1) % 45646) / Math.Sqrt((double)(rnd.Next(1, 45645646))))),
                        Selecionado = false
                    });
                }
            }

            return View(titulos);
        }
    }

My View:

 ( in attachment )

@Html.EJ().Button("mute").Size(ButtonSize.Large).ShowRoundedCorner(true).ClientSideEvents(e => e.Click("click")).Text("Mute") @(Html.EJ().Grid<object>("FlatGrid")                 .Datasource((IEnumerable<object>)ViewBag.datasource)                                 .AllowPaging()                                 .ClientSideEvents(eve => { eve.ActionComplete("actionComplete"); })                                 .Columns(col =>                                 {                                     col.Field("OrderID").HeaderText("Order ID").IsPrimaryKey(true).TextAlign(TextAlign.Right).Width(75).Add();                                     col.Type("checkbox").HeaderText("check").Width(90).Add();                                 }) ) <script>     var primaryKeyValuesArray = [];      function click(args) {         var selectedData = primaryKeyValuesArray; // array of primary key values         $.ajax({               // pass to controller         });     }     function actionComplete(args) {         if (args.requestType == "paging") {              var data1 = this.model.selectedRecords, len1 = data1.length, arrayLength = primaryKeyValuesArray.length;             for (i = 0; i < len1; i++) {                 var value = data1[i]["OrderID"]; // orderID is primarykey column field                 primaryKeyValuesArray.push(value);                 console.log(primaryKeyValuesArray);             }         }       } </script>