public JsonResult DragNotebooks(string data)
        {
            if (string.IsNullOrEmpty(data))
            {
                return(Json(false));
            }
            DragNotebooksInfo info = JsonSerializer.Deserialize <DragNotebooksInfo>(data, MyJsonConvert.GetLeanoteOptions());
            var result             = notebookService.DragNotebooks(GetUserIdBySession(), info.curNotebookId, info.parentNotebookId, info.siblings);

            return(Json(result));
        }