SWF It Good

Filter Data with ArrayCollection

June 6th, 2007

After watching a Lynda.com tutorial realized I didn’t have to do as much work to filter data.

the filterFunction is a public property of the ICollectionView witch is the class that the ArrayCollection extends from.

So this function/method is accessible to a ArrayCollection.
[as]

< ?xml version="1.0" encoding="utf-8"?>

< ![CDATA[
import mx.collections.*;

private var collectionArray:Array;
[Bindable]
private var collectionData:ArrayCollection;

private function init():void
{
collectionArray = [{first: 'Dave', last: 'Matthews'},
{first: 'Amy', last: 'Grant'},
{first: 'Bilbo', last: 'Baggins'},
{first: 'Jessica', last: 'Tandy'},
{first: 'Paris', last: 'Hilton'}];
collectionData = new ArrayCollection(collectionArray);
}

public function filter():void {

//pass my filter function to the method w/ no ()
// you must also refresh it
collectionData.filterFunction = filterFirst;
collectionData.refresh();

}
// function see's if the searchField's text is equal to the "first" object of the collectionData

//if true it show results, if false it shows nothing
private function filterFirst(item:Object):Boolean
{
return (item.first == searchField.text)

}
]]>
[/as]

Problems w/ this:

1. I have not found a way to match with just typing in “Da” and it is case-sensitive
2. When you type in a non-matching string it will not reset to beginning state. (I’m sleepy so maybe that’s why I can’t figure it out.)

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Entry Filed under: Flex, actionscript, as3, flash