---

using System;
using System.Windows.Forms;

namespace Пример_2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            TextBox tb = new TextBox();
            Button btn = new Button();
            Label lbl = new Label();

            this.Text = "День недели";
            this.Size = new System.Drawing.Size(300, 150);

            tb.Location = new System.Drawing.Point(20, 20);
            tb.Size = new System.Drawing.Size(120, 20);
            tb.Text = "18.05.2026";

            btn.Location = new System.Drawing.Point(150, 18);
            btn.Text = "Узнать";
            btn.Click += (s, e) =>
            {
                DateTime d = DateTime.Parse(tb.Text);
                string[] days = { "Вс", "Пн", "Вт", "Ср", "Чт", "Пт", "Сб" };
                lbl.Text = d.ToString("dd.MM.yyyy") + " - " + days[(int)d.DayOfWeek];
            };

            lbl.Location = new System.Drawing.Point(20, 55);
            lbl.Size = new System.Drawing.Size(250, 30);

            this.Controls.Add(tb);
            this.Controls.Add(btn);
            this.Controls.Add(lbl);
        }
    }
}