private void InitPage(Nutrient nutrient) { if (nutrient == null) { _nutrient = Nutrient.GetNew(); } else { _nutrient = nutrient.Clone(); } AddComponentsAsGrid(); MessagingCenter.Subscribe <ItemDetailPage, Nutrient>(this, "RemoveNutrient", async(obj, item) => { await App.Database.DeleteItemAsync(_nutrient.Id); }); BindingContext = this; }