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How to check internet connection without doing post back? I need to show a popup message if the connection to internet is not available. When its without going to error page no internet connection?
Posted
Updated 15-Jun-10 1:16am
v3

i found the solution
<script>
navigator.onLine()
</script>
 
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There is no way to check the server is available until you send a request to it. One way to do is to send AJAX request and see the response status. You can put this in a JS timer which will get executed at specific interval. Depending on the response status, you can show the error message.
 
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thanx all i found the solution :D
 
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Sorry, but this does not make sense.

A webpage is processed on the server. In order to call a page a connection must exist and then any checking code on that page would be a bit pointless.

If your client (aka browser) has no connection, then it will not be able to call the webpage and again any checking for a connection on the webpage will be pointless. The browser itself will show an error anyway when a page cannot be reached.

Relocating to an error page on the server side is just as pointless. The error page is again provided by the webserver, which, lacking a connection, cannot be reached.
 
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so how in Facebook when the internet connection not availabe it show u amessege, can u explaine please
 
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