onActiveNodeChange is not triggered when navigating from parent to child rows using keyboard

[TomoyaWashio]

Description

When using a hierarchical (parent–child) grid structure, keyboard navigation using the Up and Down arrow keys correctly moves focus between parent and child cells.
For example, focus can move from a parent row (e.g. Parent 0) to its child row (e.g. Child 0-0), or from a parent row to a child row in another hierarchy level.
However, when the focus moves from a parent row to a child row via keyboard navigation, the child grid’s onActiveNodeChange event is not triggered, even though the focus has clearly moved to the child cell.
This behavior makes it difficult to reliably detect parent-to-child navigation when users navigate using the keyboard.

Steps to reproduce

1. Create a hierarchical grid with parent and child rows.
2. Set up an event handler for the child grid’s onActiveNodeChange event.
3. Focus a parent row.
4. Use the Up or Down arrow keys to navigate to a child row.

Result

The focus moves to the child row as expected, but the child grid’s onActiveNodeChange event is not fired.

Expected result

When focus moves from a parent row to a child row via keyboard navigation, the child grid’s onActiveNodeChange event should be triggered so that the navigation can be detected consistently.

Attachments

c-00245333-app2.zip

msedge_b8KYkTWZRG.mp4