[flexcoders] Can DataGrids multiply columns

[Stephen]

I have a dataGrid as bellow and need to have the total of each row be 
calculated as the quantity and price are typed in.

<mx:DataGrid editable="true">
  <mx:DataGridColumn headerText="Quantity"/>
  <mx:DataGridColumn headerText="Price"/>
  <mx:DataGridColumn headerText="Total" editable="false"/>
</mx:DataGrid>

How would I do this?

- Stephen