ERROR上的FileResult + redirectToAction

Question

当我呼叫网络服务获取凭证并且网络服务是KO时，我有时会出现错误。我需要重定向到另一个Action：我需要做这样的事情：

  public virtual FileResult Ticket(int operationCategoryId, int orderId)
    {
        try
        {
            var orderDetail = _orderDetailBusiness.GetOrderDetail(operationCategoryId, orderId);
            byte[] ticketContent = _vpTicketMinuteBusiness.GetTicketContent(orderDetail.Parcels);
            return File(ticketContent, "application/pdf", orderId + ".pdf");
        }
        catch (NullReferenceException exception)
        {
            return RedirectToAction("Error");
        }

    }

我该怎么做？

Answer 1

试试这个：

 return new FileStreamResult(ms, "application/ms-excel")
            {
                FileDownloadName = "yourfile.xlsx",
            };