easyui-問一下 easyUI treegrid 在節點下面追加一個節點 效果如圖 出不來啊

問一下 easyUI treegrid 在節點下面追加一個節點 效果如圖 出不來啊

父節點變成了文件夾的圖標 但是新增的節點沒有出來

   if (editingId != undefined){  
                $('#tg').treegrid('select', editingId);  
                return;  
            }  
            var rows = $('#tg').treegrid('getChildren');  
            editingId = 40;  
            var row = null;  
            var _data = {"id":editingId,"code":"","orgname":"","price":""};  
            var _parentId = 0;  
            var row = $('#tg').treegrid('getSelected');  
            if (row){  
                $('#tg').treegrid('expand',row.id);  
                _parentId = row.id;  
            }else{  
                var root = $('#tg').treegrid('getRoot');  
                _parentId = null;  
            }  
            $('#tg').treegrid('append',{  
                parent: _parentId,   
                data: [_data]  
            });  

最佳回答：

http://blog.csdn.net/leftfist/article/details/42750587
http://www.qeefee.com/article/S191