Comments on: Live Query

By: oyanamoy

oyanamoy — Fri, 04 Sep 2009 23:19:59 +0000

why do we have to add the “return false;” statement at the end of the function after using alert() ?

By: Electric Graffiti

Electric Graffiti — Thu, 11 Jun 2009 20:40:52 +0000

Awesome… Just what i needed

By: Groningen

Groningen — Mon, 09 Feb 2009 09:18:09 +0000

Realy nice script, helps realy if you don’t want to run a dispatcher again

By: Nate

Nate — Fri, 30 Jan 2009 04:56:53 +0000

Broken demo link. It is possible to have a report broken links button on this site?

By: Jmmm

Jmmm — Sun, 14 Dec 2008 20:11:57 +0000

Thx a lot ! It was really missing..

By: Gilles Ruppert

Gilles Ruppert — Wed, 10 Dec 2008 15:19:42 +0000

@Christopher: there is no specific syntax to event delegation. Christian Heilmann has a good post about here:
http://icant.co.uk/sandbox/eventdelegation/
& Dan Webb wrote a jQuery plugin
http://www.danwebb.net/2008/2/8/event-delegation-made-easy-in-jquery

What I tend to do is bind the event on the parent & then check for classes of the target. In jQuery code it looks similar to this:
$('ul').click(function(e){ var $t = $(e.target); // converts the target into a jQuery object


  // this kind of code is needed if you want to do something different depending   on the item clicked

  if ($t.hasClass('.next')) {

    getNext($t);

  } else if ($t.hasClass('.prev')) {

    getPrev($t);

  }
  // or you can do this if you just want to do the same thing

 $t.css('color', 'red'); // makes the clicked element red

return false; // stop the event propagation & default action old school way });

This is just a quick example & should not be used in production code (it might have some errors in it, I just quickly typed it into the box);

Hope this is helpful

By: Christopher

Christopher — Mon, 08 Dec 2008 17:02:22 +0000

I’ve used LiveQuery on a recent side project and heard about the problems, so I attempted to try out Delegation, but I couldn’t figure out the syntax. Anyone know of a good explanation/tutorial on how to use it? I’m not a total newbie, but I couldn’t figure it out. If it’s the lighter, faster solution, I feel like I should know more. Maybe Net Tuts could look into this???

By: gogi

gogi — Mon, 08 Dec 2008 10:07:34 +0000

hi, i don’t understand it much. but does this mean i have to install a plugin for firefox/ie before i can use this one?

By: Chris Gunther

Chris Gunther — Mon, 01 Dec 2008 17:00:10 +0000

I’ve used LiveQuery on my site to handle the issue of dynamically added content but now I’ll have to look into using event delegation instead. Thanks for pointing out that alternative.

By: Sudhir

Sudhir — Fri, 28 Nov 2008 05:42:13 +0000

hmmmm… wouldn’t it be better to use event delegation on the parent element being updated?