Agents/Functions/ProductEditor.axaml.cs

using Agents.Models;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Media;
using System;
using System.Collections.ObjectModel;
using System.Linq;

namespace Agents;

public partial class ProductEditor : Window
{
    static User11Context db = new User11Context(); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><>
    ObservableCollection<Product> products = new ObservableCollection<Product>(db.Products); // <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

    public ProductEditor()
    {
        InitializeComponent();
        ListProducts.ItemsSource = products;
    }

    private void ListProducts_SelectionChanged(object? sender, Avalonia.Controls.SelectionChangedEventArgs e)
    {
        Product product = db.Products.Where(it=>it == ListProducts.SelectedItem).First();
        TextNewProductionpersoncount.Text = product.Productionpersoncount.ToString();
        TextNewArticlenumber.Text = product.Articlenumber.ToString();
        TextNewMincostforagent.Text = product.Mincostforagent.ToString();
    }

    private void ButtonChange(object sender, RoutedEventArgs e) // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    {
        try
        {
            Product product = db.Products.Where(it => it == ListProducts.SelectedItem).First(); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

            float a = float.Parse(TextNewProductionpersoncount.Text);
            product.Productionpersoncount = Convert.ToInt32(a);

            product.Articlenumber = TextNewArticlenumber.Text;

            float i = float.Parse(TextNewMincostforagent.Text);
            product.Mincostforagent = Convert.ToInt32(i);
            db.SaveChanges();

            Status.Foreground = Brushes.White;
            Status.Text = "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
        }
        catch
        {
            Status.Foreground = Brushes.Red;
            Status.Text = "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
        }
    }

    void Exit(object sender, RoutedEventArgs e) // <20><><EFBFBD><EFBFBD><EFBFBD>
    {
        new MainWindow().Show();
        Close();
    }
}