public JsonResult LoadData()
        {
            int draw, start, length;
            int pageIndex = 0;

            if (null != Request.Form.GetValues("draw"))
            {
                draw   = int.Parse(Request.Form.GetValues("draw").FirstOrDefault().ToString());
                start  = int.Parse(Request.Form.GetValues("start").FirstOrDefault().ToString());
                length = int.Parse(Request.Form.GetValues("length").FirstOrDefault().ToString());
            }
            else
            {
                draw   = 1;
                start  = 0;
                length = 50;
            }

            if (start == 0)
            {
                pageIndex = 1;
            }
            else
            {
                pageIndex = (start / length) + 1;
            }

            QuestionBL topicBL      = new QuestionBL();
            int        totalrecords = 0;

            List <QuestionEntities> topicEntities = new List <QuestionEntities>();

            topicEntities = topicBL.GetQuestionPageWise(pageIndex, ref totalrecords, length);

            var data = topicEntities;

            return(Json(new { draw = draw, recordsFiltered = totalrecords, recordsTotal = totalrecords, data = data }, JsonRequestBehavior.AllowGet));
        }