KFCTIS/KFC/MainWindow.xaml.cs

using System.Windows;

namespace KFC
{
    public partial class MainWindow : Window
    {
        public MainWindow() { InitializeComponent(); }

        private void MakeAnOrder(object sender, RoutedEventArgs e)
        {
            bord.Visibility = Visibility.Visible;
            windows.HW f = new windows.HW(); f.ShowDialog();
            Hide();
            windows.WinMenu c = new windows.WinMenu(); c.Show();
            Close();
        }
    }
}