ArrayCollection共享对象访问

Question

我正在尝试使用共享对象来保存城市对象的数组集合。每个城市对象都包含基本字符串属性（即CITYName，State，Zipcode等）。我可以成功编写共享对象，但是在检索时我无法访问给定城市对象的内部属性。任何想法？

var tempAC:ArrayCollection = new ArrayCollection();


if( getObjects())
{
tempAC = getObject(); //returns the only shared object i currently use.

Alert.show("temp length " + tempAC.length.toString()); // current length returned is    '7902' cities as expected

var i:int;
var cityObj:Object;
var tmpString:String;

//loop through array collection and collect city values;
for(i=0; i < tempAC.length(); i++)
{

 cityObj= new Object();
 cityObj= tempAC[i];

 tmpString += "City Name: "+ cityObj[i].CITYName.toString() + "  "+   
 cityObj.hasOwnProperty("CITYName") +"\r\n" ;

} 

  Alert.show(tmpString);   //this alert displays "City Name [object Object] true" for
all entries in the array collection

}