Back Button JS

[rlhanson]

Does anyone have a quick script that would pop an alert that you will lose any unsaved information when they click on the browser back button?

Much appreciated!

[QHF]

This may be what your looking for I'm not a programmer but it seems to be on point.

[jmarcv]

Heres what I use:

<input type="button" value="Go Back" onClick="history.go(-1)">

[jmarcv]

Oh crap .... I am getting old - That isn't even close to what you asked for! Sorry....

[rlhanson]

Oh crap .... I am getting old - That isn't even close to what you asked for! Sorry....

I just kinda chuckled... you're usually right on JM so I figured it was just a matter of time! lol

[rlhanson]

I hear this one works:

<script language="JavaScript" type="text/JavaScript">
var postback = false;
window.onbeforeunload = confirmExit;


function confirmExit() {
if (postback == true) {
event.cancelBubble = true;
}
else
return 'NOTE!!: Please save before leaving this page. Your information will be lost if you choose to navigate away from this page.';
}
</script>


<asp:Button runat="server" ID="btnDoRegisteredPostback" Text="DoRegisteredPostBack"
OnClientClick="postback=true;return true;" />
<asp:Button runat="server" ID="btnDoPostback" Text="LeavePage"�
onclick="btnDoPostback_Click"� />