Apache flex 如何在Flex中将字符串转换为ArrayCollection？

实际上我的Flex应用程序..示例代码

private var selectedDays:String = null;
            protected function selectRepeatedDays(event:MouseEvent):void
            {
                selectedDays = new String();
                if(MON.selected==true)
                {
                    selectedDays += "MONDAY,";
                    Alert.show("Monday  :"+selectedDays);
                }
                if(TUE.selected==true)
                {
                    selectedDays +=  "TUESDAY,";
                }
                if(WED.selected==true)
                {
                    selectedDays += "WEDNESDAY,";
                    Alert.show("Monday  :"+selectedDays);
                }
                if(THU.selected==true)
                {
                    selectedDays += "THURSDAY,";
                }

}
var arr:ArrayCollection = new ArrayCollection();
arr = selectedDays.substr(0, selectedDays.length-1).toString();

Alert.show(arr.lenth)

但这不是转换。。。警报语句不提示。。 因此，如何将此字符串转换为ArrayCollection…

使用以下方法将字符串转换为数组：

var array:Array = selectedDays.split(",");

然后（如果需要）将每个数组项添加到ArrayCollection：

var arr:ArrayCollection = new ArrayCollection();
for each (var str:String in array) {
    arr.addItem(str);
}

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使用下面的代码段将字符串转换为ArrayCollection

var selectedDaysArr:ArrayCollection = new ArrayCollection(array);

使用拆分方法将字符串转换为数组

var array:Array = selectedDays.split(",");

将数组转换为ArrayCollection

var selectedDaysArr:ArrayCollection = new ArrayCollection(array);

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var arr:ArrayCollection=新的ArrayCollection（数组）；