Demka_kur/OknaRoley/StarshiyWindow.axaml.cs

using Avalonia.Controls;
using Avalonia.Interactivity;
using Demka_Snova_1.Hardik.Conect.Dao;
using Demka_Snova_1.OknaFunciy;
using System.Collections.Generic;

namespace Demka_Snova_1.OknaRoley;

public partial class StarshiyWindow : Window
{
    private List<ordersDao> ordersList;
    public StarshiyWindow()
    {
        InitializeComponent();

        OrdersListBox.ItemsSource = ordersList;
    }

    private void FormatZakaz_Click(object sender, RoutedEventArgs e)
    {
        var login = new AddZakazWindow();
        login.Show();
        this.Close();
    }
    private void PrinatZakaz_Click(object sender, RoutedEventArgs e)
    {
        var selectedOrder = OrdersListBox.SelectedItem as ordersDao;

        if (selectedOrder != null)
        {
            selectedOrder.Status = "<22> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
        }
        else
        {
            ShowError("<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.");
        }
    }

    private void Exitka(object sender, RoutedEventArgs e)
    {
        var login = new MainWindow();
        login.Show();
        this.Close();
    }

    async void ShowError(string mes)
    {
        var dialog = new Window
        {
            Title = "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>",
            Content = mes,
            Width = 300,
            Height = 200
        };
        await dialog.ShowDialog(this);
    }
}