/// 以下是select框选择时的方法
 public ActionResult SelectSearch(int numOnePage, int pageIndex, string keyword, int ariticleApproveStatus)
 {
     using (RRDLEntities db = new RRDLEntities())
     {
         keyword = System.Web.HttpUtility.UrlDecode(keyword);
         AriticleService ariticleService = new AriticleService(db);
         List<Ariticle> list = new List<Ariticle>();
         list = ariticleService.KnowledgeManageSelectSearchAriticles(keyword, ariticleApproveStatus, numOnePage, pageIndex, db);
         int count = ariticleService.KnowledgeManageSelectSearchAriticlesCount(keyword, ariticleApproveStatus,  db);
         List<AriticleViewModel> Viewlist = SimplifyAriticle(list);
         string result = JsonConvert.SerializeObject(Viewlist);
         result = result + "ContentAndCount" + count;
         return Content(result);
     }
 }