Creating Chatroom in ASP.net

Question

I am trying to create a basic chat room just to enhance my programming and logical skills, but I can't figure out the functionality here.
The question which is bothering me is whether should I include database or not?
(p.s: I don't want to record any chat sessions).
I tried on my own by using Application["variable"] to post messages like.

Application["Message"] = txtMessage.text;
txtDisplay.text = txtDisplay.text + Application["Message"].ToString();

I know this is not the correct way, there will be some limits to store huge amount of messages and can't be implemented on large traffic. I tested it on LAN and it worked fine, but need a proper way to complete my project.
Need a kick start.

Answer 1

If you want a proper solution of the chat utility (with latest technologies including ASP.net MVC), you should consider WebSockets [http://www.codeproject.com/Articles/618032/Using-WebSocket-in-NET-Part] and SignalR [http://www.asp.net/signalr].