Oct 08, 2014 01:55 AM|Fei Han - MSFT|LINK
Thanks for your post.
Is there any way we can allow only a particular pair to chat (message must be available to all) ?
Groups in SignalR provide a method for broadcasting messages to specified subsets of connected clients. For more information about Groups in SignalR, you could refer to the following link.
Can we populate some data from SQL Server database and make available to all, using Signal R ?
Yes, we can do it. Here is an article which describes how to broadcast SQL Data Using SignalR in ASP.Net.
Hope it will be helpful to you.