AutoComplete with Fake Ajax

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2011.3.1129/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2011.3.1129/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2011.3.1129/js/kendo.all.min.js"></script>
<input id="searchBox" />

JavaScript

$("#searchBox").kendoAutoComplete({
    minLength: 3,
    dataTextField: "Title",
    //JSON property name to use
    dataSource: {
        pageSize: 10,
        //Limits result set
        transport: {
            read: {
                url: "/echo/json/",
                //using jsfiddle echo service to simulate JSON endpoint
                dataType: "json",
                type: "POST",
                data: {
                    // /echo/json/ echoes the JSON which you pass as an argument
                    json: JSON.stringify([
                    {
                        "Title": "Doctor Who: The Trial of a Time Lord"},
                    {
                        "Title": "Doctor Who: The Key to Time"},
                    {
                        "Title": "Doctor Who: The Time Meddler"},
                    {
                        "Title": "Doctor Who: The End of Time"}
                    ])
                }
            }
        }
    }
});

$("#searchBox").blur(function() {
    var data = $(this).data("kendoAutoComplete").dataSource._data,
        nbData = data.length,
        found = false;
    
    for(var iData = 0; iData < nbData; iData++) {
         if(this.value === data[iData].Title) 
             found = true;
    }
    console.log(found);
    alert(found);
});