AutoComplete Text in MVC using Jquery

Controller Code
**************************

public ActionResult Index()
{
       ViewBag.SampleItems= new string[] {"Apple", "Airplane", "Asp", "Ball", "Cat", "Cook"};
       return View();
}

View Code
*********************

<script>

$(function () {
        var sampleItems = new Array();
        var array = @Html.Raw(Json.Encode(@ViewBag.SampleItems));     
        for(var i =0; i<array.length;i++)         
        sampleItems[i] = array[i]; 
        $("#items").autocomplete({ source: sampleItems });
    });

</script>

<p>
       AutoComplete field:    <input id="items" />
</p>