FlexでAdvincdDataGridの使い方の例を紹介します。

AdvincdDataGridは、デュアルヘッドテーブル（1）のソースコードAdvancGrid.mxml

 
<?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" 
width="100%" height="100%"> 
<s:layout> 
<s:HorizontalLayout verticalAlign="middle" horizontalAlign="center"/> 
</s:layout> 
<fx:Declarations> 

</fx:Declarations> 

<fx:Style> 
@namespace s "library://ns.adobe.com/flex/spark"; 
@namespace mx "library://ns.adobe.com/flex/mx"; 
.adv{ 
font-size:12; 
font-weight:bold; 
color:FFFFFF; 
} 
</fx:Style> 

<fx:Script> 
<![CDATA[ 
import mx.collections.ArrayCollection; 

[Bindable] 
private var flatArray:ArrayCollection = new ArrayCollection([ 
{school:"    ",one:"5645",two:"4512",three:"4545",man:"8656",woman:"6545",Chinese:"98",Maths:"78",English:"98"}, 
{school:"    ",one:"5665",two:"4512",three:"6563",man:"8565",woman:"6541",Chinese:"67",Maths:"86",English:"65"}, 
{school:"    ",one:"6545",two:"6562",three:"5623",man:"8754",woman:"6214",Chinese:"87",Maths:"78",English:"86"}, 
{school:"    ",one:"5623",two:"2356",three:"4512",man:"8574",woman:"6354",Chinese:"98",Maths:"84",English:"69"}, 
{school:"    ",one:"4545",two:"7545",three:"5623",man:"8547",woman:"6352",Chinese:"94",Maths:"80",English:"87"}, 
{school:"    ",one:"6565",two:"4512",three:"4512",man:"8354",woman:"6854",Chinese:"90",Maths:"68",English:"97"} 
]); 
]]> 
</fx:Script> 

<mx:VBox width="100%" height="100%" paddingBottom="10" paddingLeft="10" paddingRight="10" paddingTop="10"> 
<mx:AdvancedDataGrid id="adg" dataProvider="{flatArray}" designViewDataType="flat" width="100%" height="100%" 
paddingBottom="10" paddingLeft="10" paddingRight="10" paddingTop="10" verticalAlign="middle" 
textAlign="center" headerSeparatorSkin="mx.skins.ProgrammaticSkin" headerColors="[0xB0C4DE,0xB0C4DE]" 
headerStyleName="adv"> 
<mx:groupedColumns> 
<mx:AdvancedDataGridColumn headerText="  " dataField="school"/> 
<mx:AdvancedDataGridColumnGroup headerText="  "> 
<mx:AdvancedDataGridColumn headerText="  " dataField="one"/> 
<mx:AdvancedDataGridColumn headerText="  " dataField="two"/> 
<mx:AdvancedDataGridColumn headerText="  " dataField="three"/> 
</mx:AdvancedDataGridColumnGroup> 
<mx:AdvancedDataGridColumnGroup headerText="  "> 
<mx:AdvancedDataGridColumn headerText=" " dataField="man"/> 
<mx:AdvancedDataGridColumn headerText=" " dataField="woman"/> 
</mx:AdvancedDataGridColumnGroup> 
<mx:AdvancedDataGridColumnGroup headerText="  "> 
<mx:AdvancedDataGridColumn headerText="  " dataField="Chinese"/> 
<mx:AdvancedDataGridColumn headerText="  " dataField="Maths"/> 
<mx:AdvancedDataGridColumn headerText="  " dataField="English"/> 
</mx:AdvancedDataGridColumnGroup> 
</mx:groupedColumns> 
</mx:AdvancedDataGrid> 
</mx:VBox> 

</s:Application> 

（2）を実現しました。