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<?xml version="1.0" encoding="utf-8"?>
<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" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
	<fx:Script>
		<![CDATA[
			
		import mx.collections.ArrayCollection;
		public var myAC:ArrayCollection = new ArrayCollection([
		{dest:'San Jose,CA',min:'45 mins',max:'90 mins'},{dest:'San Francisco,min:'60 mins',max:'120 mins'},{dest:'San Ramon,min:'25 mins',max:'60 mins'}]);
			
		]]>
	</fx:Script>
	
	<mx:AdvancedDataGrid dataProvider="{myAC}" width="300">
		<mx:groupedColumns>
			<mx:AdvancedDataGridColumn dataField="dest" headerText="Destination"/>
			<mx:AdvancedDataGridColumnGroup headerText="Commute Time">
				<mx:AdvancedDataGridColumn dataField="min" headerText="Min"/> 
				<mx:AdvancedDataGridColumn dataField="max" headerText="Max"/>
			</mx:AdvancedDataGridColumnGroup>    
		</mx:groupedColumns> 
	</mx:AdvancedDataGrid>
	
</s:Application>