Rails spinoffs - Mar 2007 - onLoading hanging issue

I just started using Prototype today and think it''s fantastic but
there''s one issue I keep seeing and I''m not sure if
it''s the way I''m
implementing the onLoading option or something else.

When a user requests a page it loads a variety of interface components
(approximately 7) via Ajax. I''m using the onLoading option to display
a loading message while the content is pulled from the server. The
issue I''m seeing is that that when I use the onLoading option for
either Ajax.Updater or Ajax.Request sometimes it will permanently hang
on the loading screen even though I have validated that the data has
come back from the server and should be displayed. What''s more
interesting is that it will always permanently hang on IE (6) and
intermittently on Safari.

An example of the source:

loadUserProfile = function() {
	loadBioInfo(0);
	loadContactInfo(0);
	loadWVInfo(0);
}

loadBioInfo = function(state) {
	new Ajax.Updater("profile_bio_pane","/wvis/app/fe/utility/
userAjaxLoader.php?func=loadBioInfo&v1="+state, {
		onLoading: function() {
			document.getElementById("profile_bio_pane").innerHTML =
"<img
src=''image/progress.gif''>Loading WV Information";
		}
	});
}

loadContactInfo = function(state) {
	new Ajax.Updater("profile_contact_pane","/wvis/app/fe/utility/
userAjaxLoader.php?func=loadContactInfo&v1="+state, {
		onLoading: function() {
			document.getElementById("profile_contact_pane").innerHTML =
"<img
src=''image/progress.gif''>Loading Contact Information";
		}
	});
}

loadWVInfo = function(state) {
	new Ajax.Updater("profile_wv_pane","/wvis/app/fe/utility/
userAjaxLoader.php?func=loadWVInfo&v1="+state, {
		onLoading: function() {
			document.getElementById("profile_wv_pane").innerHTML =
"<img
src=''image/progress.gif''>Loading Woodland Valley
Information";
		}

	});
}

Could someone please tell me if this is an issue with my code or if it
is something with Prototype? Yes I''m fully aware that the code could
be more cleaner but I''m just testing out the functionality of
Prototype.

Thanks,
Jeff


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Hi,Jeff,
My opinion is,
You did update a elment''s innerHTML  when your Ajax.updater(or
Ajax.request) is on a loading state.But you do no change to the
element''s innerHTML  when your Ajax.updater(or Ajax.request) finishs
loading.So, it''s in reason the element hang on the loading screen.If
you wanna display the data come back from the server(means that your
request to the server finished?),you should use onSuccess option i
guess.:>

Vin.
Sincerely.

On 4月1日, 上午2时26分,
"jeffrey.burn...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
<jeffrey.burn...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I just started using Prototype today and think it''s fantastic but
> there''s one issue I keep seeing and I''m not sure if
it''s the way I''m
> implementing the onLoading option or something else.
>
> When a user requests a page it loads a variety of interface components
> (approximately 7) via Ajax. I''m using the onLoading option to
display
> a loading message while the content is pulled from the server. The
> issue I''m seeing is that that when I use the onLoading option for
> either Ajax.Updater or Ajax.Request sometimes it will permanently hang
> on the loading screen even though I have validated that the data has
> come back from the server and should be displayed. What''s more
> interesting is that it will always permanently hang on IE (6) and
> intermittently on Safari.
>
> An example of the source:
>
> loadUserProfile = function() {
>         loadBioInfo(0);
>         loadContactInfo(0);
>         loadWVInfo(0);
>
> }
>
> loadBioInfo = function(state) {
>         new
Ajax.Updater("profile_bio_pane","/wvis/app/fe/utility/
> userAjaxLoader.php?func=loadBioInfo&v1="+state, {
>                 onLoading: function() {
>                        
document.getElementById("profile_bio_pane").innerHTML = "<img
> src=''image/progress.gif''>Loading WV Information";
>                 }
>         });
>
> }
>
> loadContactInfo = function(state) {
>         new
Ajax.Updater("profile_contact_pane","/wvis/app/fe/utility/
> userAjaxLoader.php?func=loadContactInfo&v1="+state, {
>                 onLoading: function() {
>                        
document.getElementById("profile_contact_pane").innerHTML =
"<img
> src=''image/progress.gif''>Loading Contact
Information";
>                 }
>         });
>
> }
>
> loadWVInfo = function(state) {
>         new
Ajax.Updater("profile_wv_pane","/wvis/app/fe/utility/
> userAjaxLoader.php?func=loadWVInfo&v1="+state, {
>                 onLoading: function() {
>                        
document.getElementById("profile_wv_pane").innerHTML = "<img
> src=''image/progress.gif''>Loading Woodland Valley
Information";
>                 }
>
>         });
>
> }
>
> Could someone please tell me if this is an issue with my code or if it
> is something with Prototype? Yes I''m fully aware that the code
could
> be more cleaner but I''m just testing out the functionality of
> Prototype.
>
> Thanks,
> Jeff

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