CODEWITHSUNDEEP
asp.netjavascript
question
question

Reputation: 31

how to detect browser closing from web application working with master page?

I have web application workung with master page. I want to know when the user is closing the browser' then I'll raise event to clean' session variables. How can I detect the browser closing/ I tried the unload jscript event' but it fired when I move from page to page. Anyone has an idea?

Upvotes: 2

Views: 1615

Answers (2)

darioo
darioo

Reputation: 47183

Use an AJAX "heartbeat". That is, pool the server every 30 seconds or so using Javascript. If you don't recieve a response on your server in, let's say, one and a half minute, you can be pretty sure that browser window is closed. Unless your user disabled Javascript in the meantime...

Upvotes: 1

Mazhar Karimi
Mazhar Karimi

Reputation:

Try this: (This is what we did in our project, Only 99% successful)

// Java Script Start

    window.onbeforeunload = function(e) {
        try {
            e = e || window.event;

            // add any of your logic here.


        }
        catch (ex) {
            alert(ex.message);
        }
    }

//Script End

Just add this script anywhere on your page. its a windows event, which gets called "Before the window is closed". Please avoid doing time-intensive work here, that might lead to hang the i.e or worst crash it!

Regards,

Mazhar Karimi

Upvotes: 1

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