How i can i get this output

See more:

C#

jQuery

MVC4

output required

result = [Object, Object, Object, Object, Object, Object, Object]

output coming

result = "[{"label":"11-03-2016","value":"159","year":"2000"},{"label":"12-03-2016","value":"3207","year":"2001"},{"label":"13-03-2016","value":"4610","year":"2002"},{"label":"14-03-2016","value":"3418","year":"2003"},{"label":"15-03-2016","value":"551","year":"2004"}]"

What I have tried:

public JsonResult GraphData()
        {
            GraphModel oGraphModel = null;
            List<graphmodel> lstGraphModel = new List<graphmodel>();
            int index = 0;
            Random random = new Random();
            while (index < 5)
            {
                oGraphModel = new GraphModel();
                oGraphModel.label = DateTime.Now.AddDays(index).ToString("dd-MM-yyyy");
                oGraphModel.value = random.Next(index, 5000).ToString();
                oGraphModel.year = (index + 2000).ToString();
                lstGraphModel.Add(oGraphModel);
                index++;
            }
            var jsonSerializer = new JavaScriptSerializer();
            string data = jsonSerializer.Serialize(lstGraphModel);            
            return Json(data, JsonRequestBehavior.AllowGet);
        }


 <script type="text/javascript">
        $(document).ready(function() {
           new Morris.Line({
                element: 'line-chart',
                data: Graph(),
                xkey: 'year',
                ykeys: ['value'],
                async: true,
                labels: ['value'],
                lineColors: ['#D9534F'],
                lineWidth: '2px',
                hideHover: true
           });

           new Morris.Area({
               element: 'area-chart',
               data: Graph(),
               xkey: 'year',
               ykeys: ['value'],
               async: true,
               labels: ['value'],
               lineColors: ['#428BCA'],
               lineWidth: '2px',
               hideHover: true
           });

        });

        function Graph() {
            var data = "";
            $.ajax({
                type: 'GET',
                url: '@Url.Action("GraphData", "Home")',
                dataType: 'json',
                async: true,
                contentType: "application/json; charset=utf-8",
                data: {},
                success: function (result) {
                    data = result;
                },
                error: function (xhr, status, error) {
                    alert(error);
                }
            });
            return data;
        }
    </script>