Id
This property allows you to assign a unique ID to the Tree-View control.
This is the information the variables event-control-id and control-id refer to. Both variables are defined in iscrt.def.
 
Example - Define a tree-view with an ID
screen section.
...
  03 screen-1-tv-1 Tree-View
     line 2.7
     column 3.4
     size 20.8 cells 
     lines 29.1 cells 
     color 144
     id 2
     no-box
     .