trigger columnWidth

Interactive trigger that handles processing to change the size of a column in the Tree widget's list view, when the user drags and drops the header separator.

trigger columnWidth
   string id: in
   string width : in

; <Your code here>

end ; trigger columnWidth
Applies to: Form widgets: utree (Tree)
Activation: Activated when the user clicks and drags the header separator of the tree widget to a new location and drops it.

This trigger is fired only in the list view and only when the user releases the dragged header separator.

Default behavior: None
Behavior upon completion: None


  • id—column index number, counting from zero as the left-most column
  • width—width of the column