public IChatroom joinTopic(string topic)
{
if(topicsChatRoom.Contains(topic))
{
TextChatRoom cr = new TextChatRoom(topic);
if( (topicsChatRoom[topic] != null) && (topicsChatRoom[topic] is List<IChatroom>))
{
List<IChatroom> l = (List<IChatroom>) topicsChatRoom[topic];
l.Add(cr);
}
return cr;
}
else
{
Console.WriteLine("Topic non existant");
return null;
}
}
public ServerChatRoom(IPAddress Ip, String topicName)
: base(Ip)
{
concretCR = new TextChatRoom(topicName);
}
