等待的新表单接收Udp消息

Question

有一个表单有两个按钮。一个按钮（CreateGame）使用Udpclient发送广播消息然后监听加入玩家的ip并立即打开form2，当点击加入游戏（button2）听主持人时ip然后发送消息到hostIP并打开form2.I想在等待主机的ip（点击加入游戏）时打开新表单，当它收到ip，关闭表单时。有办法吗？这是代码。

    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {

        byte[] data = ASCIIEncoding.ASCII.GetBytes("Created.");
        UdpClient broadcaster = new UdpClient(1500);
        IPEndPoint endPoint = new IPEndPoint(IPAddress.Broadcast, 1500);
        broadcaster.Send(data, data.Length, endPoint);

        UdpClient listener = new UdpClient(1501); 
        IPEndPoint endxPoint = new IPEndPoint(IPAddress.Any, 1501);
        Byte[] receivebytes = listener.Receive(ref endxPoint);
        string clientIP = Convert.ToString(endxPoint.Address);

        broadcaster.Close();
        listener.Close();

        Form2 a = new Form2(clientIP,"host");
        a.Show();           
    }

    private void Form1_Load(object sender, EventArgs e)
    {





    }

    private void button2_Click(object sender, EventArgs e)
    {
        UdpClient receiver = new UdpClient(1500);
        IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 1500);
        Byte[] receivebytes = receiver.Receive(ref endPoint);           
        string hostIP = Convert.ToString(endPoint.Address);


        UdpClient receiverx = new UdpClient(1501);           
        IPEndPoint hostPoint = new IPEndPoint(IPAddress.Parse(hostIP), 1501);          
        byte[] data = ASCIIEncoding.ASCII.GetBytes("Connected.");
        receiverx.Send(data, data.Length, hostPoint);

        receiver.Close();
        receiverx.Close();

        Form2 a = new Form2(hostIP,"client");
        a.Show();


    }