System.Net.Sockets.UdpClient
public UdpClient()
public IAsyncResult BeginSend(byte[] datagram, int bytes, AsyncCallback requestCallback, object state)
public IAsyncResult BeginSend(byte[] datagram, int bytes, IPEndPoint endPoint, AsyncCallback requestCallback, object state)
public IAsyncResult BeginSend(byte[] datagram, int bytes, string hostname, int port, AsyncCallback requestCallback, object state)