public void Disconnect()
{
// Create delegate to remote method
Action <String> RemoteDel = new Action <String>(conversation.UnregisterClient);
// Create delegate to local callback
AsyncCallback RemoteCallback = new AsyncCallback(Client.UnregisterClientCallBack);
// Call remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(nickname, RemoteCallback, null);
conversation = null;
ClientRemoteObject remoteObject = (ClientRemoteObject)RemotingServices.Unmarshal(conversationReference);
RemotingServices.Disconnect(remoteObject);
ChannelServices.UnregisterChannel(channel);
}
public bool Connect(String nickname, String port)
{
if (nickname.Equals(""))
{
printOnWarningLabel("Warning: The client cannot connect to the chat using an empty nickname.");
return(false);
}
int portNumber;
if (!int.TryParse(port, out portNumber) ||
portNumber < MINPORT ||
portNumber > MAXPORT)
{
printOnWarningLabel("Warning: The client can only connect through ports between " + MINPORT + " and " + MAXPORT + ".");
return(false);
}
EventHandler <UpdateChatEventArgs> updateChatHandler = new EventHandler <UpdateChatEventArgs>(UpdateChat);
channel = new TcpChannel(portNumber);
ChannelServices.RegisterChannel(channel, true);
ClientRemoteObject remoteObject = new ClientRemoteObject(updateChatHandler);
conversation = (IServerRemoteObject)Activator.GetObject(
typeof(IServerRemoteObject),
"tcp://localhost:8086/Conversation");
conversationReference = RemotingServices.Marshal(
remoteObject,
"Conversation",
typeof(ClientRemoteObject));
try {
// Create delegate to remote method
Action <String, int> RemoteDel = new Action <String, int>(conversation.RegisterClient);
// Create delegate to local callback
AsyncCallback RemoteCallback = new AsyncCallback(Client.RegisterClientCallBack);
// Call remote method
IAsyncResult RemAr = RemoteDel.BeginInvoke(nickname, portNumber, RemoteCallback, null);
}
catch (SocketException) {
printOnChatBox("Could not locate server");
return(false);
}
this.nickname = nickname;
return(true);
}
