how to detect the Page Close Event with ASP.NET
Question
I have a ASP.NET web app with a MasterPage and contents page, from the MasterPage when I click a MenuItem to open a new aspx Page. if I want to close the new page browser tab, I want to show a popup or a dialog that alert the user that he is closing the browser tab. I dont know how to detect the close browserTab button. I used the following code in the new aspx page:
<script type="text/javascript">
function CloseWindow() {
alert('closing');
window.close();
}
</script>
new page code behind:
protected void Page_Load(object sender, EventArgs e)
{
Page.ClientScript.RegisterOnSubmitStatement(typeof(Page), "closePage", "window.onunload = CloseWindow();");
}
Thanx in Advantage.
5 answers
solution1
3 2013-09-10 18:01:01
This works perfect.
javascript detect browser close tab/close browser
<body onbeforeunload="ConfirmClose()" onunload="HandleOnClose()">
var myclose = false;
function ConfirmClose()
{
if (event.clientY < 0)
{
event.returnValue = 'You have closed the browser. Do you want to logout from your application?';
setTimeout('myclose=false',10);
myclose=true;
}
}
function HandleOnClose()
{
if (myclose==true)
{
//the url of your logout page which invalidate session on logout
location.replace('/contextpath/j_spring_security_logout') ;
}
}
solution2
1 2013-11-11 10:23:47
I had a lot of problems with this myself and the only thing that works is: "window.onbeforeunload" event from javascripts but the problem is this gets executed a lot more than when you'd expect. So basicly if your working with a master page etc I don't think it can be done.
I think it's best you try to approach this differently because else your closing message will show up to often.
solution3
0 2013-05-16 18:08:39
You can handle this with javascript in your page.
First create a function:
function closeMessage() {
return "Are you sure you want to leave this page";
}
After that assign this method:
window.onbeforeunload = closeMessage;
Please let me know if was helpfull
solution4
0 2013-05-17 11:28:18
You need to catch the event for closing the browser and use it to do whatever you wanna do. Here is the code that worked for me.
<script type="text/javascript">
window.onbeforeunload = function (e) {
var e = e || window.event;
if (e) e.returnValue = 'Browser is being closed, is it okay?';//for IE & Firefox
return 'Browser is being closed, is it okay?';// for Safari and Chrome
};
</script>
Hope this helps..
solution5
0 2013-07-11 10:59:47
If I get you correctly, you want to know when a tab/window is effectively closed. Well, afaik your only way in Javascript to detect that kind of stuff are onunload & onbeforeunload events. Those events are also fired when you leave a site over a link or your browsers back button. So this is the best answer I can give, I don't think you can natively detect a pure close in Javascript. Correct me if I'm wrong here.you can go through browser-tab-close-detection-using-javascript-or-any-other-language
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.