[flexcoders] Reference Getter in DataGrid

[Kevin]

is it possible to reference a getter function as a variable in a  
DataGrid?

Let's say I have a VO wit the following properties:
public var first:
public var last;
public function get fullName():string{
        return this.first+" "+this.last;
}


I can I then call this in a DataGrid column?

<mx:DataGridColumn dataField="fullName" headerText="full name" />

I can't get this to work...

Thanks, Kevin