How to resize a form in runtime with button?

This will do it.....  Doesn't do anything clever with the button position,etc,etc, just resizes the form.

  public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.Size = new Size(100, 200);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.Size = new Size(250, 500);
        }
    }

Regards

Ashley