import mx.collections.ArrayCollection;
[Bindable]
public var items:ArrayCollection = new ArrayCollection([
{item: 2000},
{item: 3300},
{item: 3000},
{item: 2100},
{item: 3200}
]);
public function addDataItem():void {
// Add a randomly generated value to
// the data provider.
var n:Number = Math.random() * 3000;
var o:Object = {item: n};
items.addItem(o);
}