Re: [flexcoders] What is the difference between an Array and an ArrayCollection?

Tue, 25 Jul 2006 17:23:57 -0700

You mean I'm supposed to throw those (socks with wholes) away?

On 7/25/06, Tobias Patton <[EMAIL PROTECTED] > wrote:

You can also supply  sorting and filtering criteria to an array collection.

 

This would be like a chest of drawers that folds your socks and tosses the ones that have holes in them.

 

From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com ] On Behalf Of Pan Troglodytes
Sent: Tuesday, July 25, 2006 3:11 PM
To: flexcoders@yahoogroups.com
Subject: Re: [flexcoders] What is the difference between an Array and an ArrayCollection?

 

To add to Jester's imaginative response, ArrayCollection actually wraps an Array.  So inside, there is an Array, which can be accessed through the source property.  But if you directly access the array, you don't get the cool events the make data binding work.

On 7/25/06, JesterXL <[EMAIL PROTECTED]> wrote:

A drawer from Disney's "Beauty and the Beast" that goes, "Dude, you just put something in me!".

 

It does this by emitting an event, collectionChanged, when this happens.  Controls can listen for this event and know when the array is updated in order to redraw themselves, like the DataGrid, List, etc.

 

An Array is like a drawer in the real world.  You can put something in it, but it doesn't talk to you.

 

----- Original Message -----

Sent: Tuesday, July 25, 2006 5:59 PM

Subject: [flexcoders] What is the difference between an Array and an ArrayCollection?

 

This is a pretty newbie programming question, but coming from an AS1/AS2 background I'm not familiar with the difference between an Array and an ArrayCollection.
Could someone please explain the difference, or suggest a URL that explains the difference?

When I learned about arrays through Phillip Kerman's Actionscript book, he suggested that a "variable" was like a drawer that could hold data and an "array" was like a chest of drawers where you could reference each drawer with an index. What would an "arrayCollection" be in this analogy?

Thanks,
BB




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Jason




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