The event is cancelable
cancel returns whether the event has been intercepted and stopped
If the value becomes "true", it returns/exits from the method, instantiating the interface
Returns the state of the row after the operation has ended Indicating whether the row is being expanded (true) or collapsed (false)
Optional ownerProvides reference to the owner component.
Represents the ID of the row that emitted the event (which state is changed)
Use the rowKey property instead.
Represents event arguments related to the row's expansion state being changed in a grid