Hi,
Thomas is right. You should process only some ListItems and than add an
timeout, e.g.:
window.setTimeout(function() {
goOnProcessing(currentIndex);
},0);
IE shows a long running script warning, when too much statements were executed.
You can find more information on this subject in the following article:
http://www.nczonline.net/blog/2009/01/05/what-determines-that-a-script-is-long-running/
I would recommend that you use a virtual list and only render the items in the
current viewport:
http://demo.qooxdoo.org/current/demobrowser/demo/virtual/List.html?qx.theme=qx.theme.Modern
Best regards,
Tino
http://www.nczonline.net/blog/2009/01/05/what-determines-that-a-script-is-long-running/
Am 12.11.2010 um 18:15 schrieb thron7:
> i know there are people with much more ie experience on the list. but to
> me it sounds like incremental update and giving some breath to the
> browser through setTimeout-style programming could be the cure.
>
> i recommend you to the Progressive widget in the framework. run this in
> your ie and see how it feels:
>
> http://demo.qooxdoo.org/current/demobrowser/index.html#progressive~ProgressiveLoader.html
>
> t.
>
> On 11/12/2010 05:53 PM, Ken MacDonald wrote:
>> We have to support IE for customers, and frequently we get this
>> complaint box where IE thinks the .js is probably caught in an endless
>> loop and asks the user if they want to kill the script or continue.
>> Well, we're aren't stuck, it's just that IE's js engine is about 8-10x
>> slower than Firefox. I'm looking for some way to reduce or eliminate
>> this. Suggestions welcome!
>>
>> In one particularly bothersome case, we do a big DB query and then
>> process a display out of the results. The query comes back within a
>> second or so, then IE takes about 20 seconds to render the display of
>> the info (Firefox - 2 seconds). The display contains on average 20 Lists
>> arranged in a Grid, a couple labels and buttons, and perhaps 900
>> ListItems divided between the Lists.
>>
>> A couple of things I've considered:
>> 1) Use Tables instead of Lists for the display - anyone have a feel for
>> whether the rendering would go more quickly?
>>
>> 2) Is there any way to let good ol' IE know that we are still alive,
>> maybe some kind of signal that I could fire every 50 ListItems or so?
>>
>> 3) Similar to 2, is there a way to force the page to display, perhaps
>> after each List is filled - maybe that would convince IE that we haven't
>> died on it? (Actually, the Lists are all "collapsed" until they are are
>> filled, then I make them visible - if I made them visible through the
>> whole process, would that help?)
>>
>> 4) Once this thing is rendered and displayed, if I hit the IE 'refresh'
>> button, I get the "script running slowly" prompt again! Apparently the
>> page teardown and garbage collection is too slow for it as well. I have
>> no idea how to fix that.
>>
>> Thanks for any ideas!
>> Ken
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Centralized Desktop Delivery: Dell and VMware Reference Architecture
>> Simplifying enterprise desktop deployment and management using
>> Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
>> client virtualization framework. Read more!
>> http://p.sf.net/sfu/dell-eql-dev2dev
>>
>>
>>
>> _______________________________________________
>> qooxdoo-devel mailing list
>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
>
> ------------------------------------------------------------------------------
> Centralized Desktop Delivery: Dell and VMware Reference Architecture
> Simplifying enterprise desktop deployment and management using
> Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
> client virtualization framework. Read more!
> http://p.sf.net/sfu/dell-eql-dev2dev
> _______________________________________________
> qooxdoo-devel mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
------------------------------------------------------------------------------
Centralized Desktop Delivery: Dell and VMware Reference Architecture
Simplifying enterprise desktop deployment and management using
Dell EqualLogic storage and VMware View: A highly scalable, end-to-end
client virtualization framework. Read more!
http://p.sf.net/sfu/dell-eql-dev2dev
_______________________________________________
qooxdoo-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/qooxdoo-devel
