protected async override void OnNavigatedTo(NavigationEventArgs e) { base.OnNavigatedTo(e); Utils.ShowHideProgressBar(this.progress, true); DataContext = null; SetModelPropertiesFromQS(); if (await _model.LoadDataAsync()) { DataContext = _model; this.EventLocations.ItemsSource = _model.Locations; } Utils.ShowHideProgressBar(this.progress, false); }