Как засунуть serial port в wpf?

SerialPort sp = new SerialPort();

namespace WpfApplication6
{
    public partial class MainWindow : Window
    {
        SerialPort sp = new SerialPort();
 
        public MainWindow()
        {
            InitializeComponent();
            
            sp.PortName = "COM4";
            sp.BaudRate = 9600;
            sp.DtrEnable = true;
            sp.DataReceived += sp_DataReceived;
            sp.Open();
        }
        private void sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {
            string command = sp.ReadLine();
            this.BeginInvoke(new LineReceivedEvent(LineReceived), command);
        }
        private delegate void LineReceivedEvent(string command);
        private void LineReceived(string command)
        {
            label1.Content = "Sireal In: " + command;
 
            string input = command;
            int x;
            bool parsed = Int32.TryParse(input, out x);
        }
 
        private void progressBar1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
        {
 
        }
    }
}

this.Dispatcher.BeginInvoke