Met_F/Met_Fam/WindowShop.xaml.cs

// Подключаемые библиотеки
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.Shapes;

namespace Met_Fam
{
    /// <summary>
    /// Логика взаимодействия для WindowShop.xaml
    /// </summary>
    public partial class WindowShop : Window
    {
        Product prd = new Product();
        List<Goods> change;
        User user = new User();
        // Вывод товаров в окно магазина
        public WindowShop(User user)
        {
            this.user = user;
            InitializeComponent();
            InitializeComponent();
            LBAllGoods.ItemsSource = prd.gds.ToList();
            LBAllGoods.Items.Refresh();
            change = prd.gds;
            Filter.ItemsSource = DataBase.BaseModel.Type_Goods.ToList();
            Filter.SelectedValuePath = "ID_Type_Goods";
            Filter.DisplayMemberPath = "Title_Type_Goods";
            Filter.SelectedIndex = -1;
        }
        // Метод с поисковой строкой, фильтрами и сортировкой
        public void Filter_SelectionChanged(object sender, RoutedEventArgs e)
        {
            change = prd.gds;
            if (Filter.SelectedIndex == -1)
            {
                change = prd.gds;
            }
            else
            {
                change = change.Where(x => x.ID_Type_Goods - 1 == Filter.SelectedIndex).ToList();
            }
            LBAllGoods.ItemsSource = change;

            switch (Sort.SelectedIndex)
            {
                case 0:
                    change = change.OrderBy(x => x.Title_Goods).ToList();
                    break;
                case 1:
                    change = change.OrderBy(x => x.Title_Goods).ToList();
                    change.Reverse();
                    break;
                case 2:
                    change = change.OrderBy(x => x.Price_Goods).ToList();
                    break;
                case 3:
                    change = change.OrderBy(x => x.Price_Goods).ToList();
                    change.Reverse();
                    break;
            }
            LBAllGoods.ItemsSource = change;


            if (Scan.Text != "")
            {
                change = change.Where(x => x.Title_Goods.Contains(Scan.Text)).ToList();
            }
            LBAllGoods.ItemsSource = change;
        }
        // Кнопка для перехода в Профиль
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            new WindowProf(user).Show();
            this.Close();
        }
        List<Goods> goods = new List<Goods>();
        // Кнопка для перехода в корзину
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
            Window window = new WindowBasket(goods);
            window.Show();
            this.Close();
        }
        // Кнопка для добавления товара в корзину
        private void Button_Click_2(object sender, RoutedEventArgs e)
        {
            Button button = (Button)sender;
            int id = Convert.ToInt32(button.Uid);
            if (goods.FirstOrDefault(x => x.ID_Goods == id) == null)
            {
                Goods gds = DataBase.BaseModel.Goods.FirstOrDefault(x => x.ID_Goods == id);
                goods.Add(gds);
            }
            else
            {
                Goods gds = DataBase.BaseModel.Goods.FirstOrDefault(x => x.ID_Goods == id);
                goods.Remove(gds);
                Goods gds1 = DataBase.BaseModel.Goods.FirstOrDefault(x => x.ID_Goods == id);
                goods.Add(gds1);
                gds1.CountfForBuing += 1;
            }
        }
    }
}