public App() { InitializeComponent(); SingletonListOfEmployees emps = SingletonListOfEmployees.GetInstance(); SingletonListOfMonitors mons = SingletonListOfMonitors.GetInstance(); SingletonListOfStations stations = SingletonListOfStations.GetInstance(); SingletonListOfComments comments = SingletonListOfComments.GetInstance(); SingletonListOfTasks tasks = SingletonListOfTasks.GetInstance(); _activationService = new Lazy <ActivationService>(CreateLogin); }