[flexcoders] Set the height of a custom itemRenderer to its children

[lambovell]

The class below is being used as a custom itemRenderer, and I want to set the 
height of the VBox to that of its contents (children).
 
public class MyDynamicLayout extends VBox
    {
  // .. code removed for brevity
 
override protected function measure():void 
        {            
        super.measure();
         // measuredHeight = height = ?;// I want to calculate the height of 
all the children and set the height of this VBox to that height of all the 
children combined.
        }
}