/// <summary>
        /// 获取树形归属部门
        /// </summary>
        /// <returns>JSON数据</returns>
        public ContentResult TreeForCombobox()
        {
            string json = string.Empty;

            try
            {
                JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();
                json = jsonSerializer.Serialize(depContext.GetDepartmentMapping());
            }
            catch (Exception ex)
            {
                string message = ex.Message;
            }
            return(Content(json, "text/html"));
        }