can server respond without request in asp.net

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4.67/5 (3 votes)

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hello
i want to know that is a server can response automatically ?. when there is something for a user who is signed in.
i want to use this in my chat tool because i have to request at a specified time to get new msg. i want that when server has some new message it itself reply.

thanks in advance

Posted 1-Jan-12 18:43pm

naren programmers

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Sergey Alexandrovich Kryukov 2-Jan-12 2:24am

This is great that your came to this idea thinking about chat application! Good question; I voted 5 for this question, which happens to me very rarely.

Happy New Year!
--SA

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Sergey Alexandrovich Kryukov · Answer 1 · 2012-01-01T20:22:00

This is not a usual stuff. In principle, it can, but the application such technologies are very limited, first of all, by the browsers. You could be better off using a custom chat client (not a Web browser). The techniques based on Ajax present hidden pull techniques anyway. The real thing is HTTP server push.

What you need to look at is called "server push". Please see:
http://en.wikipedia.org/wiki/Server-push[^].

—SA

PBGuy · Answer 2 · 2012-01-01T18:47:00

Solution 1

Better use timestamps with an interval of some milli seconds to look for any assigned tasks for server.

Posted 1-Jan-12 18:47pm

PBGuy