private async void InitializePage() { _dialogService.ShowLoading("Loading..."); var rchrgs = await customerDataService.MyRecentRecharges(_settingsService.UserNameSetting); if (rchrgs != null) { Recharge = rchrgs.ToObservableCollection(); listViewCtrl.ItemsSource = Recharge; _dialogService.HideLoading(); } else { _dialogService.HideLoading(); await _dialogService.ShowDialog("Not found", "Customer information does not exist.", "Ok"); } }