DishCompound/MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace ProjectD
{

    /// <summary>
    /// Логика взаимодействия для MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private B0Entities _entities;
        public List<Ingredient> Ingredients { get; set; }
        public MainWindow()
        {
            InitializeComponent();

            _entities = new B0Entities();

            Ingredients = _entities.Ingredient.ToList();
        }


        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            StackPanel stackPanel = new StackPanel();
            stackPanel.Orientation = Orientation.Horizontal;

            IngredientList.Children.Add(stackPanel);

            ComboBox comboBox = new ComboBox();
            TextBox textBox = new TextBox();

            textBox.Width = 40;
            comboBox.Width = 120;

            comboBox.ItemsSource = Ingredients;
            comboBox.DisplayMemberPath = "name";

            stackPanel.Children.Add(comboBox);
            stackPanel.Children.Add(textBox);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            if (textBoxDishName.Text.Length == 0)
            {
                textBoxDishName.Focus();
                MessageBox.Show("Введите название блюда");
                return;
            }

            Dish dish = new Dish()
            {
                name = textBoxDishName.Text,
            };

            var d = _entities.Dish.Add(dish);
            _entities.SaveChanges();

            List<DishCompound> list = new List<DishCompound>();

            foreach (var ing in IngredientList.Children)
            {
                var st = ing as StackPanel;
                if (st != null)
                {
                    var cb = st.Children[0] as ComboBox;
                    var tb = st.Children[1] as TextBox;

                    var ingredient = cb.SelectedItem as Ingredient;

                    if (ingredient != null)
                    {
                        list.Add(new DishCompound()
                        {
                            dish = d.id,
                            ingredient = ingredient.id,
                            volume = float.Parse(tb.Text),
                        });
                    }
                }
            }
        
            _entities.DishCompound.AddRange(list);
            _entities.SaveChanges();
        }
    }
}