Flex: arrayCollection inside another ArrayCollection?

can I create an ArrayCollection into another ArrayCollectionon in Flex ?

(or just an array.. or a list if I ca开发者_开发问答nnot)

thanks

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Yes, there is no reason why you couldn't do it.

        var array:ArrayCollection = new ArrayCollection();
        var childArray:ArrayCollection = new ArrayCollection();
        childArray.addItem("test");
        array.addItem(childArray);