<?xml version="1.0"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:DataGrid id="myDG" width="350">
<mx:dataProvider>
<mx:ArrayCollection>
<mx:source>
<mx:Object Artist="A" Album="aa" Price="11.99" />
<mx:Object Artist="B" Album="bb" Price="11.99" />
</mx:source>
</mx:ArrayCollection>
</mx:dataProvider>
<mx:columns>
<mx:DataGridColumn dataField="Artist" />
<mx:DataGridColumn dataField="Album" />
<mx:DataGridColumn id="price" dataField="Price" visible="false" />
</mx:columns>
</mx:DataGrid>
<mx:Button label="Toggle Column" click="price.visible = !price.visible;" />
</mx:Application>
| 
