Controller层返回Json数据

1.public JsonResult JudgeHisList(JqGridParameter jqGridParameter, string hid) 
{ 
try 
{ 
iPAL.Models.Pub.iPAL_ManagerDataContext Qualitydb = new iPAL_ManagerDataContext(); 
var list = from a in Qualitydb.MANAGER_QUALITY_HIS_COMMENT join b in Qualitydb.MANAGER_CFG_QUALITY_HIS on a.hid equals b.Id where a.hid == Convert.ToInt32(hid) orderby a.id descending select new { remark = a.remark, userid = a.userid, addtime = a.addtime, state = b.State }; 
var resultList = list.ToList().Select(item => new 
{ 
userid=item.userid, 
remark=item.remark, 
state=item.state=="yes" ? "通过评审" : "未通过评审", 
addtime=item.addtime 
}); 

if (list.Count() < 1) 
{ 
return Json(ConvUtils.CreateNullJsonString(), JsonRequestBehavior.AllowGet); 
} 
var jsonData = JqGridHelper.ToJson(jqGridParameter, resultList.ToList