public void Join(string username)
{
callback = OperationContext.Current.GetCallbackChannel <IDuplexChatClient>();
_users[callback] = username;
messageSent = new MessageSent(MessageSentHandler);
OnMessageSent += messageSent;
}
public void SendMessage(string message)
{
callback = OperationContext.Current.GetCallbackChannel <IDuplexChatClient>();
string username;
if (!_users.TryGetValue(callback, out username))
{
return;
}
MessageEventArgs e = new MessageEventArgs();
e.Message = message;
e.Sender = username;
OnMessageSent(this, e);
}
public void Unsubscribe()
{
callback = OperationContext.Current.GetCallbackChannel <IDuplexChatClient>();
_users.Remove(callback);
OnMessageSent -= messageSent;
}
