|
Yikes…. That’s ok if you only
ever have ONE div that gets updated. But what about when you start getting into
truly autonomous widgets? What I mean is, having dozens of controls on a page,
each responsible for their own communication with the server, each with their
own div that they update. Or if you want an Your method is fine if none of those
scenarios are a concern for you. If they could be down the road, then what you
should do is create dispose() method for each of your objects that handles
clearing out all of its event handlers before sending the request to be
updated. So a pseudo-object would look like… someObject.prototype = { initialize:
function() { this._attachEvents(); …other
initialization code… }, _attachEvents:
function() { this.someClickListener
= this.someElement_Clicked.bindAsEventListener(this); Event.observe($(“someElement”),
“click”, this.someClickListener); …attach
other DOM event handlers here (always assign to variables for future reference
and cleanup) }, _detachEvents:
function() { Event.stopObserving($(“someElement”),
“click”, this.someClickListener); this.someClickListener
= null; }, someElement_Clicked:
function(event) { alert(“clicked!”); }, dispose:
function() { this._detachEvents(); …other
cleanup code (like unregistering droppables, draggables, calling dispose on
children objects, etc..) } }; From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Varun Mehta By default the prototype.js gives us the
function /* prevent memory leaks in
IE */ Event.observe(window,
'unload', Event.unloadCache, false); But there is no unload event in out
application as the content of the div keeps changing using the Ajax.Updater
function. To handle such a scenario, we’ve added the following lines of
code to prototype.js /* prevent memory leaks in
IE */ Event.observe(window,
'unload', Event.unloadCache, false); Event.observe(document,
'readystatechange', Event.unloadCache, false); Now I’m still testing and will proceed
with it, but would like to know will this help in improving the performance, if
not, then what is the optimum way to use this function to clean & clear the
IE memory as the page get’s refreshed. Regards *-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Visit Varun
at
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