private PlanningAppState SeekLastState() { return(PlanningAppStates.Count() > 0 ? PlanningAppStates[PlanningAppStates.Count() - 1] : null); }
private PlanningAppState FirstState(PlanningAppState planningAppState) { return(PlanningAppStates.Count() > 0 ? PlanningAppStates[0] : null); }
public bool isLastState(PlanningAppState planningAppState) { return(PlanningAppStates.Count() == (PlanningAppStates.IndexOf(planningAppState) + 1)); }