IRowToggleEventArgs

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

Optional Represents the original event, that has triggered the expansion/collapse

Returns the state of the row after the operation has ended Indicating whether the row is being expanded (true) or collapsed (false)

Provides reference to the owner component.

Represents the ID of the row that emitted the event (which state is changed)