C#

C:\>dir /s/b %SystemDrive%\windows\microsoft.net\framework\csc.exe
C:\windows\microsoft.net\framework\v1.1.4322\csc.exe
C:\windows\microsoft.net\framework\v2.0.50727\csc.exe
C:\windows\microsoft.net\framework\v3.5\csc.exe

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);

        }
    }
}