How to turn bytearray into IList in Actionscript?

How to turn Array (like Camera.names) into IList (for for ex MXML s:DropDownList

<s:DropDownList x="113" y="121" selectedIndex="0" dataProvider="开发者_StackOverflow{Camera.names}"></s:DropDownList>

)?

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var myList:IList = new ArrayCollection(sourceArray);