我正在尝试访问itemRenderer中的DataGridColumn的dataField.下面是dataGrid：
<mx:Script>
<![CDATA[
[Bindable] public var weeksOfMoth:ArrayCollection = new ArrayCollection([
{monday:30,tuesday:31,wednesday:1,thursday:2,friday:3,saturday:4,sunday:5},{monday:6,tuesday:7,wednesday:8,thursday:9,friday:10,saturday:11,sunday:12},{monday:13,tuesday:14,wednesday:15,thursday:16,friday:17,saturday:18,sunday:19},{monday:20,tuesday:21,wednesday:22,thursday:23,friday:24,saturday:25,sunday:26},{monday:27,tuesday:28,wednesday:29,thursday:30,friday:1,saturday:2,sunday:3}
]);
]]>
</mx:Script>
<mx:DataGrid dataProvider="{weeksOfMoth}" >
<mx:columns>
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="monday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="tuesday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="wednesday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="thursday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="friday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="saturday" />
<mx:DataGridColumn itemRenderer="view.DateRenderer" dataField="sunday" />
</mx:columns>
</mx:DataGrid>
这是我的ItemRenderer：
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" >
<mx:Box >
<!-- How do I get the dataField here?? -->
<mx:Label text="{data[dataField]}" />
</mx:Box>
</mx:Canvas>
在itemRenderer的set data函数中,我收到一整周(这没关系),但是itemRenderer不知道使用哪一天,因为dataField是未知的.有谁知道如何在itemRenderer中访问此dataField？
解决方法
www.Flextras.com的评论帮助我找到了解决方案.我确实可以使用listData.dataField,但首先需要实现IDropInListItemRenderer类.
最终的ItemRenderer：
<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" implements="mx.controls.listClasses.IDropInListItemRenderer" >
<mx:Script>
<![CDATA[
import mx.controls.dataGridClasses.DataGridListData;
import mx.controls.listClasses.BaseListData;
// Internal variable for the property value.
private var _listData:DataGridListData;
// Make the listData property bindable.
[Bindable("dataChange")]
// Define the getter method.
public function get listData():BaseListData
{
return _listData;
}
// Define the setter method,public function set listData(value:BaseListData):void
{
_listData = DataGridListData(value);
}
]]>
</mx:Script>
<mx:Box width="80%" height="80%" verticalCenter="0" horizontalCenter="0" backgroundColor="#FFFFFF">
<mx:Label text="{data[_listData.dataField]}" />
</mx:Box>
</mx:Canvas>