// обработка нажатия кнопки добавления private async void CreateCostCat(object sender, EventArgs e) { CostCat costCat = new CostCat(); CostCatPage costCatPage = new CostCatPage { BindingContext = costCat }; await Navigation.PushAsync(costCatPage); }
// обработка нажатия элемента в списке private async void OnItemSelected(object sender, SelectedItemChangedEventArgs e) { CostCat selectedCostCat = (CostCat)e.SelectedItem; CostCatPage costCatPage = new CostCatPage { BindingContext = selectedCostCat }; await Navigation.PushAsync(costCatPage); }