Silverlight中的异步套接字连接

using System;
using System.Net.Sockets;
using System.Text;

public class AsyncSocketClient
{
    private Socket _socket;

    public void Connect(string host, int port)
    {
        _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        _socket.BeginConnect(host, port, OnConnect, null);
    }

    private void OnConnect(IAsyncResult ar)
    {
        _socket.EndConnect(ar);
        byte[] buffer = Encoding.UTF8.GetBytes("Hello, server!");
        _socket.BeginSend(buffer, 0, buffer.Length, SocketFlags.None, OnSend, null);
    }

    private void OnSend(IAsyncResult ar)
    {
        int bytesSent = _socket.EndSend(ar);
        byte[] buffer = new byte[1024];
        _socket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, OnReceive, null);
    }

    private void OnReceive(IAsyncResult ar)
    {
        int bytesReceived = _socket.EndReceive(ar);
        string message = Encoding.UTF8.GetString(ar.AsyncState as byte[], 0, bytesReceived);
        Console.WriteLine("Received message: " + message);
    }
}