C#

this.SuspendLayout();
TheNewButton = new Button();
this.TheNewButton.TextAlign = ContentAlignment.MiddleCenter;
this.TheNewButton.Width = 140;
this.TheNewButton.Height = 40;
this.TheNewButton.Text = "New button";
this.TheNewButton.UseVisualStyleBackColor = true;
this.TheNewButton.Visible = true;
this.TheNewButton.Location = new System.Drawing.Point(150, 24);
this.Controls.Add(TheNewButton);
this.TheNewButton.Click += new System.EventHandler(this.TheNewButton_Click);
this.ResumeLayout();
this.Refresh();

private void TheNewButton_Click(object sender, EventArgs e)
{
  // Do something here ...
}

        private void button1_Click(object sender, EventArgs e)
        {
            Button buttonNew  = new Button();
            buttonNew.Location = new Point(button1.Left + button1.Width +25, button1.Top );
            buttonNew.Name = "buttonNew";
            buttonNew.Size = new Size(130, 26);
            buttonNew.Text = "buttonNew";
            buttonNew.Click += delegate(System.Object o, EventArgs eArgs)
                   { MessageBox.Show("new button clicked"); };

            this.Controls.Add(buttonNew);
        }