Comments on: The Hottest ExtJS 3.0 Feature You’ve Never Heard About

By: Talha

Talha — Sun, 13 Mar 2011 15:43:33 +0000

thank you so much for this useful post, this is what I’ve been looking for get an item while extending its container.

By: Shea Frederick

Shea Frederick — Tue, 01 Mar 2011 16:19:53 +0000

In 4.x, this feature has been replaced with ComponentQuery, which is much more flexible.

http://dev.sencha.com/deploy/ext-4.0-pr1/docs/api/Ext.ComponentQuery.html

By: JDS

JDS — Tue, 01 Mar 2011 14:14:09 +0000

Too bad it’s not in Ext4

By: Shea Frederick

Shea Frederick — Fri, 18 Feb 2011 15:51:01 +0000

Yes.

http://www.vinylfox.com/learning-ext-js-3-0-released/

By: Rafael

Rafael — Fri, 18 Feb 2011 15:47:26 +0000

Had no idea this existed, it simplifies it so much… Thanks a lot!

By: uberVU - social comments

uberVU - social comments — Tue, 24 Nov 2009 12:04:27 +0000

Social comments and analytics for this post…

This post was mentioned on Twitter by tdgi: #ExtJS TOTD: Learn about the ‘ref’ config property from @VinylFox http://bit.ly/UCY4j...

By: Shea Frederick

Shea Frederick — Mon, 19 Oct 2009 13:20:33 +0000

How exactly did you come to this conclusion?

By: Shea Frederick

Shea Frederick — Mon, 19 Oct 2009 13:20:07 +0000

I agree, that factor definitely limits their use. I still use them quite often though, mostly for user interactions that I know wont happen till the UI has been rendered.

By: Edoardo Marcora

Edoardo Marcora — Sat, 17 Oct 2009 13:24:28 +0000

The fact that “refs” are set after rendering the component makes it of limited use. It would be a great tool if “refs” were set when a component is first instantiated, before rendering and everything else. I ended not using them to not constantly worrying about whether a component was rendered or not before using them.

By: Bruno Tavares

Bruno Tavares — Thu, 01 Oct 2009 19:07:45 +0000

Ext ties references using the new ref config. but the references are never deallocated. It would be better if Ext could store the ref’s and on onDestroy method, deallocate.

I’m just wondering if all this references could end up on a big memory leak…