{on|once}('{type}') subscribes to an event the grid never raises, so the handler will never fire. Check the name against the EventName list - a common cause is a near miss such as 'row:click' for 'row:clicked'.

Warnings reference › bus.unknown:*

Identifier

bus.unknown:*

Raised by

The grid (core)

Since

1.16.0

What happened

The event name is not one the grid emits, so the subscription is dead: it is registered, it costs nothing, and it will never be called. The check runs in development builds only.

The fix

Check the name against the events reference. Near misses - a missing :ed, a singular for a plural - are the usual cause.

The smallest fix

grid.on('row:clicked', ({ key }) => open(key));

Reference

Covered in full at the API reference.