Tree View - ItemExpanding Event

ItemExpanding is the event of tree view showing the next level entries

Member of Tree View (PRIM_TRVW)


The ItemExpanding event is fired when an item is expanded by the user.
It is typically used as a trigger to load additional child data.


In this example, the level of the expanding item is tested to determine what sort of data to add.
Evtroutine Handling(#Tree.ItemExpanding)
   Case (#Tree.CurrentItem.Level)
   When (= 1)
   When (= 2)

See also

All Component Classes

Technical Reference

LANSA Version 15, April 2020