C# Socket連接請求超時處理

在Socket的超時時間默認20多秒，而實際連上不需1秒時間，20多秒很多時候用戶是不能接受的，而在等待返回結果的這段時間裏程序會處於停止響應狀態！廢話不多說了，先上代碼！

 

 private delegate string ConnectSocketDelegate(IPEndPoint ipep, Socket sock);


private string ConnectSocket(IPEndPoint ipep, Socket sock)
        {
            string exmessage = "";
            try
            {
                sock.Connect(ipep);
            }
            catch (System.Exception ex)
            {
                exmessage = ex.Message;
            }
            finally
            {
            }

            return exmessage;
        }

 private void Button1_Click(object sender, EventArgs e)
        {
            IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("192.168.4.1"), 8266);//IP和端口
            Socket sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            ConnectSocketDelegate connect = ConnectSocket;
            IAsyncResult asyncResult = connect.BeginInvoke(ipep, sock, null, null);

            bool connectSuccess = asyncResult.AsyncWaitHandle.WaitOne(2000, false); //2秒後結束
            if (!connectSuccess)
            {
                MessageBox.Show(string.Format("連接失敗！錯誤信息：{0}", "連接超時"));//2秒後彈出

            }
        }