MVC中ztree异步加载

var setting = {
        async: {
            enable: true,
            url: "*****/LoadChild",
            autoParam: ["id"],
            dataFilter: filter
        }
    };

    function filter(treeId, parentNode, childNodes) {
        if (!childNodes) return null;
        for (var i = 0, l = childNodes.length; i < l; i++) {
            childNodes[i].name = childNodes[i].name.replace(/\.n/g, '.');
        }
        return childNodes;
    }

public ActionResult LoadChild(string id)
        {
            List<Sys_User_List> listUser = _bll.GetList(id, false);//得到子节点
            var list = listUser.Select(user =>
            {
                var treeNode = new ZTreeJsonEntityForGrant
                {
                    id = user.Id.ToString(),
                    pId = id,
                    name = user.User_Name,
                    isHidden = false,
                    isDisable = false,
                    open = false,
                    type = "User",
                    drag = true
                };
                if (treeNode.isDisable)
                {
                    treeNode.icon = staticFile + "/Content/Images/Icon16/user_silhouette.png";
                }
                else
                {
                    treeNode.icon = (!string.IsNullOrEmpty(user.Gender) && user.Gender.Equals("女") == true) ? staticFile + "/Content/Images/Icon16/user_female.png" : staticFile + "/Content/Images/Icon16/user.png";
                }
                return treeNode;
            }).ToList();

            return new ConfigurableJsonResult<ZTreeJsonEntityForGrant>(list);
        }

public class ZTreeJsonEntityForGrant
    {
        /// <summary>
        /// 节点父ID
        /// </summary>
        public string pId { get; set; }

        /// <summary>
        /// 节点ID
        /// </summary>
        public string id { get; set; }

        /// <summary>
        /// 节点显示内容
        /// </summary>
        public string name { get; set; }

        /// <summary>
        /// 是否展开
        /// </summary>
        public bool open { get; set; }

        /// <summary>
        /// 是否可以拖拽
        /// </summary>
        public bool drag { get; set; }
        /// <summary>
        /// 是否父节点
        /// </summary>
        public bool isParent { get; set; }
        /// <summary>
        /// 节点图标
        /// </summary>
        public string icon { get; set; }
        /// <summary>
        /// 是否隐藏
        /// </summary>
        public bool isHidden { get; set; }
        /// <summary>
        /// 是否禁用
        /// </summary>
        public bool isDisable { get; set; }
        public string type { get; set; }
    }