API Reference > ui-components > Tree > TreeEvents > onSelectionModified onSelectionModified MethodOptional Called when tree selection is modified. If Subscription is returned it can be used to stop event handling by calling unsubscribe(). onSelectionModified(event: TreeSelectionModificationEventArgs): undefined | Subscription Parameter Type Description event TreeSelectionModificationEventArgs Returns - undefined | Subscription Last Updated: 11 June, 2024