in src/ModernTacoShop/AndroidApp/AndroidApp.FrontEnd/MainActivity.cs [283:300]
private void UpdateOrderFormUI()
{
FindViewById<EditText>(Resource.Id.domainNameText).Text = TacoOrder.ServiceDomainName;
FindViewById<Button>(Resource.Id.subtractBeefTacoButton).Enabled = TacoOrder.TacoCountBeef > 0;
FindViewById<Button>(Resource.Id.subtractCarnitasTacoButton).Enabled = TacoOrder.TacoCountCarnitas > 0;
FindViewById<Button>(Resource.Id.subtractChickenTacoButton).Enabled = TacoOrder.TacoCountChicken > 0;
FindViewById<Button>(Resource.Id.subtractShrimpTacoButton).Enabled = TacoOrder.TacoCountShrimp > 0;
FindViewById<Button>(Resource.Id.subtractTofuTacoButton).Enabled = TacoOrder.TacoCountTofu > 0;
FindViewById<TextView>(Resource.Id.beefTacoCountLabel).Text = TacoOrder.TacoCountBeef == 0 ? "" : TacoOrder.TacoCountBeef.ToString();
FindViewById<TextView>(Resource.Id.carnitasTacoCountLabel).Text = TacoOrder.TacoCountCarnitas == 0 ? "" : TacoOrder.TacoCountCarnitas.ToString();
FindViewById<TextView>(Resource.Id.chickenTacoCountLabel).Text = TacoOrder.TacoCountChicken == 0 ? "" : TacoOrder.TacoCountChicken.ToString();
FindViewById<TextView>(Resource.Id.shrimpTacoCountLabel).Text = TacoOrder.TacoCountShrimp == 0 ? "" : TacoOrder.TacoCountShrimp.ToString();
FindViewById<TextView>(Resource.Id.tofuTacoCountLabel).Text = TacoOrder.TacoCountTofu == 0 ? "" : TacoOrder.TacoCountTofu.ToString();
FindViewById<Button>(Resource.Id.submitOrderButton).Enabled = TacoOrder.CanSubmit();
}