public async Task <AjaxResult> GetPagingData([FromUri] int _pageIndex, int _pageSize)
        {
            var _ajaxResult = new AjaxResult();

            try
            {
                _ajaxResult.Data = _refBL.GetPagingData(_pageIndex, _pageSize);
            }
            catch (Exception ex)
            {
                _ajaxResult.Success = false;
                _ajaxResult.Message = Resources.errorVN;
                _ajaxResult.Data    = ex;
            }
            return(_ajaxResult);
        }
        public async Task <AjaxResult> GetRefs1([FromUri] int pageIndex, int pageSize)
        {
            await Task.Delay(500);

            var _ajaxResult = new AjaxResult();

            try
            {
                _ajaxResult.Data = _refBL.GetPagingData(pageIndex, pageSize);
            }
            catch (Exception ex)
            {
                _ajaxResult.Success = false;
                _ajaxResult.Message = "fail";
                _ajaxResult.Data    = ex;
            }
            return(_ajaxResult);
        }