Hello All,I am designing a winforms application which talks to web services via VPN/LAN(.Net framework 2.0).The application mostly deals with read/modify/insert data data in a SQL 2k5 DB.Since I wanted the application to be simple to develop and be scalable, I found web services to be the way to go. But now, there's an additional complexity of broadcasting messages to all clients.A client should be able to send messages to all the other clients currently logged in. For eg, An admin user sending a message saying "System will go down for maintainence in x minutes". Also, specific events like locking,etc should be notified(When a user starts editing a form, all the other clients should be notified of the event("User A has locked� screen for editing")� and should be prevented from editing the same form). What will be the best way to implement such a functionality since this requires the clients "listening" for server events and servers "listening" for c ...
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