hvem er online

hejsa jeg har følgende spørgsmål,
jeg vil gerne kunne sende en besked tilbage til den den kom fra og ikke alle klienter..

koden er fra serveren


public static Hashtable htUsers = new Hashtable(30);

public static void SendMessage(string From, string Message)
        {
            StreamWriter swSenderSender;
           
            // First of all, show in our application who says what
            e = new StatusChangedEventArgs(From + " siger: " + Message);
            OnStatusChanged(e);
           
            // Create an array of TCP clients, the size of the number of users we have
            TcpClient[] tcpClients = new TcpClient[ChatServer.htUsers.Count];
            // Copy the TcpClient objects into the array
            ChatServer.htUsers.Values.CopyTo(tcpClients, 0);
         

            // Loop through the list of TCP clients
         
                for (int i = 0; i < tcpClients.Length; i++)
            {
                // Try sending a message to each
                try
                {
                    // If the message is blank or the connection is null, break out
                    if (Message.Trim() == "" || tcpClients[i] == null)
                    {
                        continue;
                    }
                    // Send the message to the current user in the loop
                   
                    swSenderSender = new StreamWriter(tcpClients[i].GetStream());
                    swSenderSender.WriteLine(From + " siger: " + Message);
                    swSenderSender.Flush();
                    swSenderSender = null;
                }
                catch // If there was a problem, the user is not there anymore, remove him
                {
                    RemoveUser(tcpClients[i]);
                }
            }
        }


mvh
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