public void OnException(ExceptionContext context)
        {
            var isAjax = context.HttpContext.Request.IsAjaxRequest();

            if (isAjax)
            {
                context.Result = new JsonResult(AjaxResult.FailedResult(context.Exception));
            }
            else
            {
                context.Result = new RedirectToActionResult("error", "home", null);
            }
        }