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Notify jquery from server (trigger an asynchronous client side event from the server).

Posted By:      Posted Date: November 03, 2010    Points: 0   Category :ASP.Net
 

Hello,

I want to have a code that would establish connection from the server to the jQuery client, to update the front page of the website, when some new data is added to the DB. I of course could have an ajax call from the client on every second to check up the database for any changes, but I am just wondering if there is any way to establish a connection from the server side to the client.

The perfect solution would work like that:

- when the page is open, the client registers itself on the server for changes

- the server (knowing all the registered clients) prompts all of them when a change is done

- if any of the clients does not respond, the server removes the client from the registered list

- clients, update the page contents with the new data from the server

The question is if it is possible? Again, I could make all the clients reconnect to the server every second using ajax, however, this does not seem like a clean solution, and additionally it would put an unnecessary load on the server (e.q. 100 clients requesting update every second).

Thanks in advance,

Jozef A. Habdank




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