c# - How to notify table-data change to a client program? -

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suppose have application access data resident in central db server , more 1 user access data client machines networked db server.

suppose 2 client machines running copy of application , 2 users accessing same db table.

how can automatically refresh data on gui, being viewed 1 client, change made client in db table-data?

which technology should used solve particular scenario in .net?

wcf?

you looking notification push model. you'd have create seperate connections server each client. lots of hard work. wcf / sockets this. comet in web server environment.

much easier way poll server every 15 seconds or client , check if there has been update. store last updated timestamp on server , if greater timestamp have refresh.


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