Closing the browser should actually clear the session variables

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Hello Friends,
I am creating an application in which there is a chat module.Available users are fetched from the database.There is a column in the table table OnlineUsers
in which value is stored in bit.
Now if a user is online it stores 1.Whenever a user logsout an update is made to the table and value is set to 0.

When a user directly closes the browser i want to call a method that updates the table with value 0 so that he is not available in the chat window.

Posted 21-Jun-12 21:11pm

RashdSiddique

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OriginalGriff · Answer 1 · 2012-06-21T21:19:00

Solution 1

You can't guarantee it - it is always possible to disconnect a browser from you session without any notification. For example, by turning the PC power off, resetting the ADSL modem, etc.. You can use the Javascript UnLoad event, but I don't think it works the same in all browsers. http://www.w3schools.com/jsref/event_onunload.asp[^]

Posted 21-Jun-12 21:19pm

OriginalGriff

Comments

Manas Bhardwaj 22-Jun-12 6:12am

Right +5

Prasad_Kulkarni · Answer 2 · 2012-06-21T21:20:00

Solution 2

Please refer similar threads:
Clearing Session Variables on browser close[^]
Handle Browser Close Event on the Server-Side[^]
Closing the browser should actually clear the session variables[^]

Posted 21-Jun-12 21:20pm

Prasad_Kulkarni

Comments

Manas Bhardwaj 22-Jun-12 6:12am

Good ref +5

Prasad_Kulkarni 22-Jun-12 6:29am

Thank you Manas!

Prosan · Answer 3 · 2012-06-21T21:31:00

use this code it will solve ur problem

XML

<script type="text/javascript">
function unload()
    {

               var btn =document.getElementById('BtnSave');

                 //alert(btn);
                 btn.click();
//        if (Flg==false)
//        {
//            event.returnValue = "UNSAVED DATA WILL BE LOST!!";
//        }
    }
</script>

<body onbeforeunload="unload()">