TIWCGJQDropDownOptions.OnChange Property
Fired when selection is changed.
This event is not fired when the selection is changed using Select2's val() method.
The event object contains the following custom properties:
val: the current selection (taking into account the result of the change) - id or array of ids.
added: the added element, if any - the full element object, not just the id.
removed: the removed element, if any - the full element object, not just the id.
published property OnChange: TIWCGJSonFunc index 32 read GetFuncValue write SetFuncValue stored IsFuncStored;