Copying here code that i've daone in getting a country combo box.It is given as array collections..Chk if it can solve ur problem
public function loadCountryCombo():void
{
if(flag1)
{
var object:Object;
if(model.userInfo.countryId!
= null)
{
cntryId = new Array();
cntryName = new Array();
cntryId =
model.userInfo.countryId;
cntryName =
model.userInfo.countryName;
for(var i:int = 0; i< cntryId
[0].length;i++)
{
object = new Object
();
object.data = cntryId
[0][i];
object.label =
cntryName[0][i];
countrydata.addItem
(object);
}
flag1=false;
}
}
}

