更改按钮的背景色

Question

I have written this code:

public partial class MainWindow : MetroWindow
{
    private static byte[] _buffer = new byte[1024];
    private static List<Socket> _clientSockets = new List<Socket>();
    private static Socket _serverSocket = new Socket
        (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

    private void MetroWindow_Loaded(object sender, RoutedEventArgs e)
    {
        SetupServer();
    }

    public void changeColorButton()
    {
        var custom = new BrushConverter();
        testButton.Background = (Brush)custom.ConvertFrom("#FF00D400");
    }

    private static void SetupServer()
    {
        _serverSocket.Bind(new IPEndPoint(IPAddress.Any, 100));
        MessageBox.Show("Server ONLINE");
        _serverSocket.Listen(5);
        _serverSocket.BeginAccept(new AsyncCallback(AcceptCallBack), null);
    }

    private static void AcceptCallBack(IAsyncResult AR)
    {
        Socket socket = _serverSocket.EndAccept(AR);
        _clientSockets.Add(socket);

        -----<triggers the changeColorButton() here>---

        s.Add(socket);
        socket.BeginReceive(_buffer, 0, _buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallBack), socket);
        _serverSocket.BeginAccept(new AsyncCallback(AcceptCallBack), null);
    }

}

It accepts clients that will try to connect into the server. I also have a button for testing. I am trying to change the colour of the button when a client tries to connect to the server.

I tried to call changeColorButton() using this code:

    MainWindow m = new MainWindow();
    m.changeColorButton;

but it seems that I got an error on this one. Any suggestions on how I can change the colour of the button on whenever there is a client that will try to connect to the server? thank you. :)

Answer 1

尝试使用ConvertFromString而不是ConvertFrom