How can I display True/False in my dropdownlist as "Yes" and "No"?

Hi All,
I want to bind a dropdownlist to a boolean value (so it's either true or false). I'm particularly interested in using two-way binding to when the user changes from "yes" to "no" the boolean value automatically changes from "true" to "false." But, I want the user to see "yes" and "no" as the options, rather than "true" and "false".
How can I display "yes" and "no" and still take advantage of binding? Or can I not use binding in this circumstance?
-Josh

Solution 1:
In order to display Yes/No for True/False, you may specify labelFunction for the dropdownList.
In MXML:
<s:DropDownList labelFunction="myLabelFunction" />
In actionscript:
private var arr:ArrayCollection = new ArrayCollection(["true","false"]);
            private function mylabelFunction(item:Object):String
                if(item.toString() == "true")
                    return "yes";
                else return "No";
OR
Solution2:
may be u can try making an array collection like
private var arr:ArrayCollection = new ArrayCollection([{label:"yes",value:"true"},{label:"no",value:"false"}]);
and specify labelField for the dropdownList like
<s:DropDownList labelField="label" dataProvider="{arr}" />

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