// ctor public ReportsViewModel(IFrameNavigationService frameNavigationService) { _frameNavigationService = frameNavigationService; _reportsManager = new ReportsManager(); LogoutCommand = new RelayCommand(() => { ViewModelLocator.UnRegisterReportsViewModel(); _frameNavigationService.NavigateTo("Login"); }); GeneratePaymentsCommand = new RelayCommand(() => { _reportsManager.GeneratePayments(); }); GetReports(); }