Re: [flexcoders] Searching through an ArrayCollection of Objects

[Krunal Panchal]

Hi,

You have to create the copy of ArrayCollection using the Utility.Copy command 
which we help you to keep the copy of original one and create the copy of 
existing one.

Apply the filter condition on newly created ArrayCollection.

Hope this will help you
 
Regards,

________________________________

Krunal Panchal 
*panchal_...@yahoo.com




________________________________
From: Nick Middleweek <n...@middleweek.co.uk>
To: flexcoders@yahoogroups.com
Sent: Tue, 2 March, 2010 14:13:32
Subject: [flexcoders] Searching through an ArrayCollection of Objects

  
Hi,

I was wondering if there are any quick ways to solving this, quick as in CPU 
time, not developer time...

I have an Array Collection of VO's called contact which has two properties.. .

var myAC : ArrayCollection = new ArrayCollection( );

var myContact : Contact = new Contact();
myContact.name = "bob";
myContact.age = 30;

myAC.addItem( myContact) ;

var myContact : Contact = new Contact(); // Also, Is this bad practice? 
Am I loosing the reference to previous myContatc? I'm sure someone 
mentioned this to me once on this list?
myContact.name = "bill";
myContact.age = 31;

myAC.addItem( myContact) ;

var myContact : Contact = new Contact();
myContact.name = "sarah";
myContact.age = 28;

myAC.addItem( myContact) ;


I now want to write a function which takes the ArrayCollection to scan, the 
name property value of the object and it will return the age property of the 
first found VO. At the moment, I'm just looping through the collection without 
sorting them and it all seems to work. I've had a look at the Array API and 
have found sortOn and lastIndexOf( ), etc but am thinking is there a time 
benefit in sorting first and then looping or is there a super function that 
does exactly what I want and super efficient?

I was thinking is it worth converting to XML then using E4X queries but the 
conversion is probably time comsuming.


In reality myAC will be about 300 elements so maybe a brute force looping scan 
might be good enough but having started this, I'd like to hear what you others 
think.


Thanks in advance,
Nick