C#

PIEBALDconsult wrote:

CodeDom should be calling the latest installed version of the compiler.

Dictionary<string, string> options = new Dictionary<string, string>() { { "CompilerVersion", "v3.5" } };
Microsoft.CSharp.CSharpCodeProvider cp = new Microsoft.CSharp.CSharpCodeProvider(options);

using System;
using System.Windows.Forms;

namespace TestApp
{
    public partial class Form1 : Form
    {
        ExtendedTextBox extendedTextBox1;

        public Form1()
        {
            InitializeComponent();
            extendedTextBox1 = new ExtendedTextBox();
            Controls.Add(extendedTextBox1);
        }
    }

    public class ExtendedTextBox : TextBox
    {
        public ExtendedTextBox()
        {
        }

        protected override void OnHandleCreated(EventArgs e)
        {
            base.OnHandleCreated(e);
            Parent.Click += new EventHandler(Parent_Click);
        }

        void Parent_Click(object sender, EventArgs e)
        {
            MessageBox.Show(
                "click",
                "click",
                MessageBoxButtons.OK,
                MessageBoxIcon.Information);

        }
    }
}

// assume today is 30 Sep 2009 (30/09/2009)
string day = (DateTime.Now.AddDays(1).Day.ToString());    // day = 1        
string month = (DateTime.Now.Month.ToString());           // month = 9 
string year = (DateTime.Now.Year.ToString());             // year = 2009
string date_nextDay = month + '/' + day + '/' + year;    // gives 9/1/2009