C#

public class ListBoxEx : ListBox 
{
  protected override void OnMouseHover(EventArgs e)
  {
    SelectedIndex = IndexFromPoint(PointToClient(MousePosition));
    base.OnMouseHover(e);
  }
}

SetStyle(ControlStyles.DoubleBuffer, true);
SetStyle(ControlStyles.AllPaintingInWmPaint, true);

using System.Threading;


<font color="green">//where you want to pause...</font>
Thread.Sleep(1000);

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

private void button1_Click(object sender, System.EventArgs e)
{
    this.textBox3.Text  = this.textBox1.Text.ToString() + " " + this.textBox2.Text.ToString();
}

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt

The only man who never makes a mistake is the man who never does anything. - Theodore Roosevelt