유니버셜 앱으로 서버를 생성 하였는데요. 여기서 request로 들어간 정보를 어떻게 화면에 출력 해야 할지 모르겠습니다.

Question

namespace echo_Server
{

    /// <summary>
    /// </summary>
    public sealed partial class MainPage : Page
    {
       
        public MainPage()
        {
           
            this.InitializeComponent();
            acho_sever();
            achoclient();
          
        }
        private async void acho_sever()
        {
            try
            {
                //Create a StreamSocketListener to start listening for TCP connections.
                Windows.Networking.Sockets.StreamSocketListener socketListener = new Windows.Networking.Sockets.StreamSocketListener();

                //Hook up an event handler to call when connections are received.
                socketListener.ConnectionReceived += SocketListener_ConnectionReceived;

                //Start listening for incoming TCP connections on the specified port. You can specify any port that's not currently in use.
                await socketListener.BindServiceNameAsync("1337");
               
            }
            catch (Exception e)
            {
                //Handle exception.
               
            }

        }
        private async void SocketListener_ConnectionReceived(Windows.Networking.Sockets.StreamSocketListener sender,
    Windows.Networking.Sockets.StreamSocketListenerConnectionReceivedEventArgs args)
        {
            //Read line from the remote client.
            Stream inStream = args.Socket.InputStream.AsStreamForRead();
            StreamReader reader = new StreamReader(inStream);
            string request = await reader.ReadLineAsync();

            //Send the line back to the remote client.
            Stream outStream = args.Socket.OutputStream.AsStreamForWrite();
            StreamWriter writer = new StreamWriter(outStream);

            this.textBox.Text = request //여기에 넣어봤는데 에러가 나고 void 상태라 리턴값으로 빼지도 못하겠네요

어떻게 해서 출력해야 할까요?

            await writer.WriteLineAsync(request);

            await writer.FlushAsync();
        }