>I have a form which has l list box of value and a set of navigation buttons defined in a class. I would like to refresh the navigation buttons when moving in the list box, assume 3 items.
>
>1. when at line 1 down and bottom buttons are highlighed
>2 when at line 2 all buttons are highlighted
>3. when at line 3 up and top buttons are highlighted
>
>This works when using the buttons. How do I do it from the list box?

* InteractiveChange Event 
DO CASE
CASE This.ListIndex = 1 
  * top of the list - the 1st item
CASE This.ListIndex = This.ListCount
  * Bottom of the list - the last item
OTHERWISE
  * Somewhere in the middle
ENDCASE