linq数据使用

public ActionResult vote(int id=1)
        {
            int userid = Convert.ToInt32(Request.Cookies["id"].Value);
            var q = from p in db.als where p.uid== userid select p.lid;
            List <int> pp= new List<int>();   
            foreach (var item in q)
            {
                pp.Add(Convert.ToInt32(item)); 
                  //遍历linq取出的数据加入到list中
            }
            pp.Contains(id);
            while(pp.Contains(id))
            {
              id=id+1;
            }
            list newlist = db.lists.Find(id);
            return View(newlist);
        }