Flex 4:枚举 Spark 列表项 [英] Flex 4: Enumerating Spark List items

问题描述

设置dataProvider属性后如何枚举Spark List组件的项目?

How to enumerate items of Spark List component after setting dataProvider property?

我的意思是将它们作为 DisplayObject 实例访问.

I mean accessing them as DisplayObject instances.

推荐答案

迭代list.dataGroup.numElements，调用list.dataGroup.getElementAt(i):

var i:int = 0;
var n:int = list.dataGroup.numElements;
for (i; i < n; i++)
{
    // getElementAt returns an IVisualElement, but most displayobjects
    // in a list will be IVisualElement (which a UIComponent implements)
    var displayObject:DisplayObject = list.dataGroup.getElementAt(i) as DisplayObject;
}

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