If you have an ArrayCollection with a filter function set and you loop through the items, you’ll only see the items which match the filter. The catch is sometimes you want to see them all. Initially I was doing the following.
var filterFunction:Function = arrayCollection.filterFunction;
arrayCollection.filterFunction = null;
for each (var obj:Object in arrayCollection)
// do stuff
arrayCollection.filterFunction = filterFunction;
This worked but was pretty ugly. Here’s a nicer approach:
for each (var obj:Object in arrayCollection.source)
// do stuff
What I keep finding in Flex is that I’m able to come up with complex code to solve simple problems but when I revisit it months later there’s usually a more straight-forward solution.
Hope this helps,
This is one of those things that took me much longer than I thought it would have. I needed to convert a file containing XML data to an ArrayCollection. My XML file looked like this:
I wanted to convert this into an ArrayCollection with each row as an object (and I didn’t want to have to loop through each item in the list). Here’s the solution I’m using.
private function convertXmlToArrayCollection( file:String ):ArrayCollection
var xml:XMLDocument = new XMLDocument( file );
var decoder:SimpleXMLDecoder = new SimpleXMLDecoder();
var data:Object = decoder.decodeXML( xml );
var array:Array = ArrayUtil.toArray( data.rows.row );
return new ArrayCollection( array );
I’m not thrilled with this approach because I’ve needed to hard code the XML structure (’rows.row’) into the function. If anyone has a better solution I’d love to see it.