Tree Design Interface - OnItemExpanding Method

Executed when the item is expanded

Member of Tree Design Interface (PRIM_TREE.ITreeDesign)

Parameters

Name	Type	Data Type	Description
TreeItem	*Input	PRIM_TREE.TreeItem	Reference to the expanding item

Details

The OnItemExpanding event is fired when an item is expanded by the user.
 
The correspedonding ItemExpanding event will be executed.

Example

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

See also

All Component Classes

Technical Reference

LANSA Version 15, April 2020