How to apply Typeahead with ASP.Net MVC using Ajax Source

Twitter typeahead javascript library is a fast and fully-featured autocomplete library inspired by the autocomplete search functionality from twitter.
Following script is HTML code for defining input with typeahead. Note there is one
data-provide="typeahead" defined within the input node. This attribute notifies the plugin that we are going to perform a lookup with this textbox.

<div class="col-md-3 col-xs-6">
    <label for="StudentID" class="control-label">Enter Student ID</label>
    <div id="details"></div>
    <div class="input-group input-group-sm">
        <input type="text" name="studentId" id="studentId" class="form-control input-sm" data-provide="typeahead">
    </div>
</div>

Javascript part:

$("#studentId").typeahead({
    minLength: 4,
    source: function (query, process) {
        var students = [];
        map = {};

        // This is going to make an HTTP post request to the controller
        return $.post('/Student/StudentLookup', {studentId: query}, function (data) {
            // Loop through and push to the array
            $.each(data, function (i, student) {
                map[student.Name] = student;
                students.push(student.Name);
            });
            // Process the details
            process(students);
        });
    },
    updater: function (item) {
        var studentId = map[item].StudentId;
        // Set the text to our selected id
        $("#details").text("Selected : " + studentId);
        return item;
    }
});

Controller Part:

public class StudentController : Controller
{
  public ActionResult StudentLookup()
  {
    var students = new List<StudentEntity>
        {
            new StudentEntity {StudentId = "01", Name = "Frank Zhang"},
            new StudentEntity {StudentId = "02", Name = "Andrew Chen"},
            new StudentEntity {StudentId = "03", Name = "John Smith"},
            new StudentEntity {StudentId = "03", Name = "Johnson Stone"},
        };
    return Json(students, JsonRequestBehavior.AllowGet);
  }
}

Reference:
https://github.com/bassjobsen/Bootstrap-3-Typeahead
http://www.deanhume.com/Home/BlogPost/twitter-bootstrap-typeahead-and-asp-net-mvc---key-value-pairs/88