How to check internet connection?

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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 1-Apr-10 0:09am

imaa2amha

Updated 15-Jun-10 1:16am

Moak

v3

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5 solutions

Solution 5

thanx all i found the solution :D

Posted 14-Jun-10 19:35pm

imaa2amha

Solution 1

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.

Posted 1-Apr-10 2:04am

CDP1802

Solution 2

so how in Facebook when the internet connection not availabe it show u amessege, can u explaine please

Posted 2-Apr-10 5:52am

imaa2amha

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imaa2amha · Accepted Answer · 2011-03-11T22:28:00

Solution 6

i found the solution

<script>
navigator.onLine()
</script>

Posted 11-Mar-11 22:28pm

imaa2amha

N a v a n e e t h · Accepted Answer · 2010-04-02T18:40:00

Solution 3

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.

Posted 2-Apr-10 18:40pm

N a v a n e e t h