带有 itemEditor 的 AdvancedDatagrid:单击时值消失

AdvancedDatagrid with itemEditor: Value disappears when clicked

我正在尝试使用 ComboBox 作为 AdvancedDatagrid 中的 itemEditor。网格和组合框都正确填充了值。但是当我单击一个单元格时,该值消失了。我是否需要设置更多属性才能使其正常工作,还是我必须编写自己的 itemEditor 来将值复制到 itemEditor 或从 itemEditor 复制值?

完整代码:

<?xml version="1.0"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
               xmlns:s="library://ns.adobe.com/flex/spark" 
               xmlns:mx="library://ns.adobe.com/flex/mx" 
               initialize="initCB();">

<fx:Script>
    <![CDATA[
        import mx.collections.*;
        [Bindable] public var stateArray:ArrayCollection;

        public function initCB():void {
            stateArray=new ArrayCollection([{label:"AL", data:"Montgomery"},
                                      {label:"AK", data:"Juneau"},
                                      {label:"AR", data:"Little Rock"}]);
        } 

        [Bindable] public var initDG:ArrayCollection = new ArrayCollection([{etikett:'NY', tekst:"New York"}, {etikett:'CA', tekst:"Los Angeles"}]);
    ]]>
</fx:Script>     


<mx:AdvancedDataGrid id="gridIntMapping" y="24" left="10" right="605" height="166" editable="true" dataProvider="{initDG}">
    <mx:columns>
            <mx:AdvancedDataGridColumn width="130" dataField="etikett" headerText="Skjema referanse" editorDataField="text">
                <mx:itemEditor>
                    <fx:Component>                  
                        <mx:ComboBox editable="true" dataProvider="{outerDocument.stateArray}" labelField="label"/>
                    </fx:Component>
                </mx:itemEditor>
            </mx:AdvancedDataGridColumn>
    </mx:columns>
</mx:AdvancedDataGrid>

data.etikett 设置为组合框文本。如下所示:

<mx:ComboBox editable="true" dataProvider="{outerDocument.stateArray}" labelField="label" text="{data.etikett}" />

点击后会显示文字