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) #Com_owner.LoadSections When (= 2) #Com_owner.LoadEmployees Endcase Endroutine
LANSA Version 15, April 2020