X
This property is used to identify a column of a tree-view control with the Table-View style. It is always used in conjunction with other properties to set or retrieve the value of a column property, or in conjunction with the Item property, to set or retrieve the value of a cell.
 
Example - popuplate the column headings
       procedure division.
       ...
           modify screen-1-tv-1 x=1 item=-1 item-text "Tree Col. 1"
           modify screen-1-tv-1 x=2 item=-1 item-text "Tree Col. 2"
           modify screen-1-tv-1 x=3 item=-1 item-text "Tree Col. 3"
       ...