public HttpResponseMessage DeleteManifest(string ID)
        {
            bool result = _bll.DeleteManifest(ID);

            if (result)
            {
                return(Request.CreateResponse(HttpStatusCode.OK, "删除成功"));
            }
            else
            {
                return(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, "删除出错"));
            }
        }