Value
This property represents the value of the List-Box control.
When inquired, it returns the value that is currently represented.
When set, the List-Box control changes its look to represent it.
When set, the currently selected item is changed in order to match the value set.
 
Example - Define a list-box where the third item is selected
screen section.
...
  03 screen-1-lb-1 List-Box
     line 5.7
     column 3.1
     size 34.6 cells 
     lines 15.5 cells 
     id 1
     item-to-add ("item 1""item 2""item 3")
     value "item 3"
     .
...