[C#]設定連線Time out

TcpClient MyTcpClient = new TcpClient()；
IAsyncResult MyResult = MyTcpClient.BeginConnect(YourTargetIP, YourTargetPort, null, null)；
 MyResult.AsyncWaitHandle.WaitOne(3000, true)；//只等三秒
if (!MyResult.IsCompleted)
{
    MyTcpClient.Close()；
    //作如果沒連上線的事
}
else if (MyTcpClient.Connected == true)
{
    //作連上線的事
}

MyTcpClient.Close()；