jQuery live() custom events

[Gregg Bolinger]

With the livequery plugin I can do something like this:

$('element').livequery(function() {
   $(this).jqGrid({ ..... });
});

With jQuery's live() function, I have to do this

$('element').live('createGrid', function(e, myName, myValue) {
    $(this).jqGrid({ ... });
});

$('element').trigger('createGrid');

Am I missing something or do we have to call trigger to force the custom live event? The jQuery demo does this because the live event is triggered by another event. I don't see how this is better than not using live() at all, since a manual trigger is required.

[Bear Bibeault]

The two are not the same. In the livequery() example, you are establishing a "match handler" -- one that automatically gets called when a matching element is created. live() has no such facility.

[Gregg Bolinger]

Bear Bibeault wrote:live() has no such facility.

Ok, thanks Bear.

[Bear Bibeault]

A little history. In jQuery 1.2, live() did not exist. The LiveQuery plugin provided two facilities:

Establishing match/mismatch handlers (called when a matching element comes into, or goes out of, being).

"Live" events

The latter facility was incorporated into jQuery core as part of its event handling facility. The former was not. I still use the LiveQuery plugin for matching handling.