CompleteController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace AspMvcJQuery.Controllers
{
    public class CompleteController : Controller
    {
        private MvcJQueryDB db = new MvcJQueryDB();

        //
        // GET: /Complete/

        public ActionResult Index()
        {
            return View();
        }
        // POST: /Complete/Suggestions
        [HttpPost]
        public JsonResult Suggestions(string searchText, int maxResults)
        {
          
           List<Sample> sampleList=db.Samples.Where(s=>s.SampleName.StartsWith(searchText)).ToList();
            return Json(sampleList);
        }

    }
}