async void OnAddFoodClicked() { if (Name == null || Calories == null) { System.Diagnostics.Debug.WriteLine("name or cal not set"); await Application.Current.MainPage.DisplayAlert("Missing Field", "Please Enter all Fields", "Ok"); } else { int cal; food.Name = Name; try { cal = Convert.ToInt32(Calories); food.Calories = cal; var mongoService = new MongoService(); await mongoService.CreateFood(food); await Application.Current.MainPage.Navigation.PopAsync(); } catch (Exception ex) { System.Diagnostics.Debug.WriteLine(ex.Message); } } }