Opc.Ua.Server.StateMachine.BeginTransitionToState C# (CSharp) Method

        protected virtual Transition BeginTransitionToState(OperationContext context, QualifiedName toState)
        {
            if (m_currentState == null || m_currentStateName == null)
            {
                GotoInitialState();
            }

            foreach (Transition transition in m_transitions)
            {
                if (transition.FromState == m_currentStateName && transition.ToState.BrowseName == toState)
                {        
                    return transition;
                }
            }

            throw ServiceResultException.Create(
                StatusCodes.BadMethodInvalid,
                "Cannot move to {0} State while in the {1} State.",
                toState.Name,
                CurrentStateName);
        }