flex4 combox 只读模式

flex4 combox 只读模式

[Bindable]
            private var bestTimeArrc:ArrayCollection = new ArrayCollection([{label:"时间不限",value:"0"},{label:"周一至周五",value:"0"},{label:"周六周日及公众假日",value:"0"},{label:"送前电话联系",value:"0"}]);

<s:ComboBox id="bestReceiveTime"  creationComplete="bestReceiveTime.textInput.editable=false" width="200" labelField="label"  dataProvider="{bestTimeArrc}" prompt="选择您的最佳送货时间"> 

                </s:ComboBox>