プログラマ専用SNS ミクプラ

コード:

C:\windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe f1.cs
f1.exe
pause

コード:

using System;
using System.Windows.Forms;
using System.Drawing;

public class Program
{
    [STAThread]
    static void Main()
    {
        Form f;
        TextBox usercontrol;

        f = new Form();
        usercontrol = new TextBox();

        f.Text = "Form";
        usercontrol.Text = "ABC";

        f.Size = new Size(300, 200);
        f.Location = new Point(200, 300);
        usercontrol.Location = new Point(30, 20);

        f.Controls.Add(usercontrol);

        // [単一行ラムダ式]
        usercontrol.KeyDown += (sender, e) => usercontrol.Text = "Key Down";
        usercontrol.KeyUp += (sender, e) => usercontrol.Text = "Key Up";

        Application.Run(f);
    }
}