public ActionResult <ItemResponse <Paged <Provider> > > SelectByState(int id, int pageIndex, int pageSize)
        {
            int          code     = 200;
            BaseResponse response = null;

            try
            {
                Paged <Provider> pagedItems = _service.SelectByState(id, pageIndex, pageSize);

                if (pagedItems == null)
                {
                    code     = 404;
                    response = new ErrorResponse("App resource not found.");
                }
                else
                {
                    response = new ItemResponse <Paged <Provider> > {
                        Item = pagedItems
                    };
                }
            }
            catch (Exception ex)
            {
                base.Logger.LogError(ex.ToString());
                code     = 500;
                response = new ErrorResponse(ex.Message);
            }

            return(StatusCode(code, response));
        }