There is no way to do this from the server side, as no page request is
made (it is loaded from cache), so you will have to use javascript -
here's an example from the web:
-----start-------
<HTML>
<BODY ONLOAD="handleBackButton()">
<FORM NAME="backtrack">
<INPUT TYPE="HIDDEN" NAME="isBack" VALUE="No">
</FORM>
<SCRIPT LANGUAGE="JAVASCRIPT">
<!--//
var isBackDefault="No";
var isBack;
function handleBackButton(){
isBack = (isBackDefault != document.backtrack.isBack.value);
document.backtrack.isBack.value="Yes";
document.backtrack.isBack.defaultValue="Yes";
}
function isBackButtonUsed(){
return isBack;
}
-->
</SCRIPT>
<form>
<input type=button value="how did I get here?"
onclick="(isBackButtonUsed())? alert('Back button was used'):alert('Page
was loaded normally')">
</form>
</BODY>
</HTML>
-----end-------
note that this approach will detect any load from cache - so the forward
button as well. Once you've detected that the page was loaded from
cache, you can use the javascript location.reload(true) function to
force a reload of the page.
/t
>-----Original Message-----
>From: Protoculture [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, May 03, 2005 5:05 PM
>To: CF-Talk
>Subject: detecting back button for page refresh
>
>Hi All. I would like to detect that the user has clicked the
>back button. I need to do this in order to get the last value
>entered in the form. ( currently using session variables to
>recall the last item searched for ). However as you can guess,
>by pressing the back button you do not get the lastest session
>items, you get the old ones.
>
>any work arounds?
>
>
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