递归生成树形菜单

递归生成树

　　　　//调用的方法
　　　　 public ActionResult TreeView()
        {
            List<TreeModel> ltm = this.GetTrees();
            string tree = JsonConvert.SerializeObject(ltm).ToString();
            return Content(tree);
        }


       
        public List<TreeModel> GetTrees()
        {
            List<ModuleEntity> listQuery = map.GetList().ToList<ModuleEntity>();
            List<ModuleEntity> me = listQuery.Where(t => t.F_ParentId == "0").ToList<ModuleEntity>();
            if (me==null)
            {
                return null;
            }

            List<ModuleEntity> Lme = me.ToList<ModuleEntity>();  

            List<TreeModel> tm = new List<TreeModel>();

            foreach (ModuleEntity item in Lme)
            {
                 TreeModel tms = new TreeModel();
                 tms.id = item.F_Id;
                 tms.name = item.F_FullName;
                 tms.parentId = item.F_ParentId;
                 tms.spread = "true";
                 List<TreeModel> child = new List<TreeModel>();
                 GetTree(listQuery, child, item.F_Id);
                 tms.children = child;
                 tm.Add(tms);
            }
              
            return tm;
        }

        //递归获取数据
        public void GetTree(List<ModuleEntity> list,List<TreeModel> listTree,string parentId)
        {
            foreach (ModuleEntity item in list)
            {
                if (item.F_ParentId==parentId)
                {
                    TreeModel tm = new TreeModel();
                    tm.id=item.F_Id;
                    tm.parentId = item.F_ParentId;
                    tm.name = item.F_FullName;
                    tm.spread = "true";
                    tm.children = new List<TreeModel>();
                    listTree.Add(tm);
                    GetTree(list,tm.children,tm.id);
                }
            } 
        }
       
       

 树形菜单类

   public class TreeModel
    {
        public string id { get; set; }
        public string parentId { get; set; }
        public string name { get; set; }
        public string spread { get; set; }
        public string href { get; set; }
        public List<TreeModel> children { get; set; }

    }