Comments on: Writing a Big Application in Ext (Part 3)

By: Yura

Yura — Tue, 24 Nov 2009 23:50:30 +0000

Hi. Thank you for your articles.
Can you tell how to destroy ext components correctly? I have faced with a lot of memory leaks.

Thanks.

P.S. Sorry for my English.

By: Jon

Jon — Tue, 18 Aug 2009 14:44:14 +0000

I\’m curious, why is initComponent not documented in the Ext API reference? It seems like it appears in quite a few examples but isn\’t officially a public API.

By: Saki

Saki — Fri, 10 Apr 2009 01:18:53 +0000

Post please your question to forum and PM me the link to it. I guess many others can face the same problem so better would be to answer there.

By: Ash

Ash — Thu, 09 Apr 2009 17:37:07 +0000

Hi,Thanks for the article.I appreciate your help always.
I have 20-25 grids in my app.all with different fields in store and different column headers in column model and also different context menus.I am using EditorGridPanel for some and just GridPanel for others.
Do you think extension of grid panel is needed here ,can it help in avoiding to write 25 column models and store.and provide a generic way to enter store and context menus and column headers?

By: Saki

Saki — Tue, 07 Apr 2009 10:04:51 +0000

If you move panelConfig to initComponent then it is not in prototype and it will work.

By: arno.nyhm

arno.nyhm — Tue, 07 Apr 2009 09:34:48 +0000

the red/blue issue: i miss an example how to save the color not in a single instance variable!?

By: Saki

Saki — Sun, 05 Apr 2009 22:31:52 +0000

Maybe it's not formulated exactly but if you do not plan to reuse a component you do not need to extend. However, if it better suits to your app, programming practices, file organization, etc, you can extend if you want if you do it properly and w/o mistakes.

By: Charles Ginzel

Charles Ginzel — Sun, 05 Apr 2009 15:34:19 +0000

Saki,

First thanks for all of your efforts and patience to educate all of us. One point I’m confused on here is that in part 1 you advocate creating extensions for each application component but in part 3 you are tackling “over use of extensions”. Maybe I’m missing the point, but if I’m creating non-reusable, but self contained modular components within my application like a specific implementation of a grid or a tree, should I not be creating that as an extension as I thought your were saying in part 1?

By: Saki

Saki — Sat, 04 Apr 2009 00:58:37 +0000

You’re welcome; I’m glad they help.

By: Jason Boxman

Jason Boxman — Fri, 03 Apr 2009 17:46:27 +0000

Excellent post. Your examples and extensions are always top notch. Thanks!