WinForm递归绑定TreeView

绑定方法

        /// <summary>
        /// 所有地区泛型对象
        /// </summary>
        IList<AreaTInfo> areaList = new List<AreaTInfo>();
                private void BindArea(string cityNo,TreeNodeCollection nodes, int level)
        {
            List<AreaTInfo> list = new List<AreaTInfo>();
            foreach (AreaTInfo ai in areaList)
            {
                if (ai.F_AreaSN==cityNo)
                {
                    list.Add(ai);
                }
            }
            level = level + 1;
            foreach (AreaTInfo item in list)
            {
                TreeNode tnc = new TreeNode();
                tnc.Text = item.AreaName;
                tnc.Tag = item.AreaSN;
                BindArea(item.AreaSN,tnc.Nodes, level);
                nodes.Add(tnc);
            }
        }

调用方法：

areaList = _proxy.GetAreaInfo().ToList<AreaTInfo>() ;

BindArea("410000",this.treeView1.Nodes, 0);

treeView1.ExpandAll(); /*这句是展开所有节点*/