stevenk140
Programmer
Is there some event that lets me know when the page has been closed. My problem is I want to delete all files that were created during a viewing of a web page. What is the best way of doing this?
Steve
Steve
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Page Close Event? 1
- Thread starter stevenk140
- Start date
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steven: The best way would be to have the window closed by an object - however, if you want to detect the close of the window when a user clicks on the "X" close button of the window, that would require a diff approach. An alternative is to have the files cleared after a Session timeout, etc... I'll follow up on this with a little research - again, I think this is a great question, "identifying the close event" and subsequently carrying out some code routine.
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1
- #3
In "classic" ASP I would execute a javascript finction on window.onunload event. The function would open another asp page, which has some server side script, performing clean-up and closing the page.
This works pretty good in classic ASP, haven't tried anything like this in ASP.Net though. Also keep in mind that the onunload event will fire not only when the user clicks the "x" button, but while navigating out of the page as well, like clicking on a redirecting link. BTW, Isadore's idea to perform the clean up in Global.asax inside the Session_End handler looks much better and cleaner, you should probably take a closer look at it.
Code:
somepage.asp:
<html>
<head>
<script language="javascript">
function doCleanUp()
{
window.open("cleanup.asp", "", "top=2000");
}
</script>
</head>
<body onunload="javascript:doCleanUp();">
........
</body>
</html>
Notice top=2000, the new window will not be visible, just a short flash will occur.
cleanup.asp:
<html>
<body onload="javascript:closeMe()">
<%
'execute server side script to perform clean up...
%>
<script language="javascript">
function closeMe(){
self.close();
}
</script>
</body>
</html>- Thread starter
- #5
stevenk140
Programmer
Thanks for the tips guys, this now leads me to another question.
I have decided to go with Isadore's approach and do a clean up at the end of a session. My question now is, how do I see when the function
protected void Session_End(Object sender, EventArgs e)
{
//code ...
}
gets called? It never seems to hit my break point when I close the window or anything.
Does this code get executed on session timeout?
Can I debug this code some way?
Thanks for the help so far,
Steven
I have decided to go with Isadore's approach and do a clean up at the end of a session. My question now is, how do I see when the function
protected void Session_End(Object sender, EventArgs e)
{
//code ...
}
gets called? It never seems to hit my break point when I close the window or anything.
Does this code get executed on session timeout?
Can I debug this code some way?
Thanks for the help so far,
Steven
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