Wrise/Write-erase/ManagerPages/ShowProductPage.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;
using Write_erase.Classes;

namespace Write_erase.ManagerPages
{
    /// <summary>
    /// Логика взаимодействия для ShowProductPage.xaml
    /// </summary>
    public partial class ShowProductPage : Page
    {
        List<Product> products = DataBaseClass.entity.Product.ToList();
        public ShowProductPage(int id)
        {
            InitializeComponent();
            List<User> users = DataBaseClass.entity.User.Where(x => x.UserID == id).ToList();
            foreach (User user in users)
            {
                FIO.Text = user.UserPatronymic + " " + user.UserName + " " + user.UserSurname;
            }
            ProductPanelUser.ItemsSource = DataBaseClass.entity.Product.ToList();
            CBDiscount.Items.Add("Все диапазоны");
            CBDiscount.Items.Add("0-9,99%");
            CBDiscount.Items.Add("10-14,99%");
            CBDiscount.Items.Add("15% и более");
            CBDiscount.SelectedIndex = 0;
            TBShowAll.Text = "Всего товаров: " + DataBaseClass.entity.Product.ToList().Count;
        }
        private void Filter()
        {
            switch (CBDiscount.SelectedIndex)
            {
                case 0: products = DataBaseClass.entity.Product.ToList(); break;
                case 1: products = DataBaseClass.entity.Product.Where(x => x.ProductDiscountAmount / 100 < 0.0999).ToList(); break;
                case 2: products = DataBaseClass.entity.Product.Where(x => x.ProductDiscountAmount / 100 >= 10 && x.ProductDiscountAmount / 100 < 0.1499).ToList(); break;
                case 3: products = DataBaseClass.entity.Product.Where(x => x.ProductDiscountAmount / 100 >= 0.15).ToList(); break;

            }
            ProductPanelUser.ItemsSource = products;
            TBShowPart.Text = "Показано предложений: " + products.Count;
        }
        private void Sorter()
        {


            if (!string.IsNullOrWhiteSpace(TBXSearch.Text))
            {
                products = DataBaseClass.entity.Product.Where(x => x.ProductName.ToLower().Contains(TBXSearch.Text.ToLower())).ToList();
            }
            if (RBUp.IsChecked == true)
            {
                products.Sort((x, y) => x.ProductCost.CompareTo(y.ProductCost));
            }
            else if (RBDown.IsChecked == true)
            {
                products.Sort((x, y) => x.ProductCost.CompareTo(y.ProductCost));
                products.Reverse();
            }
            else if (RBDefault.IsChecked == true)
            {
                products.Sort((x, y) => x.ProductArticleNumber.CompareTo(y.ProductArticleNumber));
            }
            if (products.Count == 0)
            {
                MessageBox.Show("Товаров с таким диапазоном скидок нет");
            }
            ProductPanelUser.ItemsSource = products;
            TBShowPart.Text = "Показано предложений: " + products.Count;
        }
        private void RBUp_Click(object sender, RoutedEventArgs e)
        {
            Sorter();
        }

        private void RBDown_Click(object sender, RoutedEventArgs e)
        {
            Sorter();
        }

        private void RBDefault_Click(object sender, RoutedEventArgs e)
        {
            Sorter();
        }

        private void CBDiscount_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            Filter();
        }

        private void TBXSearch_TextChanged(object sender, TextChangedEventArgs e)
        {
            Sorter();
        }
    }
}