זה הקוד המלא
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Navigation;
namespace tchumim
{
/// <summary>
/// Interaction logic for App.xaml
/// </summary>
public partial class App : Application
{
public App()
{
var win = new Window();
win.Content = "123";
win.Show();
}
}
}
