Always increasing size of rectangle with mouse down event?
<p>How do I always increasing size of rectangle with mouse down event?</p>

<pre><code>private void btnPlus_MouseDown(object sender, MouseEventArgs e)
{
    rect.Width = rect.Width + 1;
    rect.Height = (int)(((rect.Width) / 4) * 3);

    label1.Text = rect.Width.ToString();
    label2.Text = rect.Height.ToString();

    pictureBox1.Invalidate();
}
</code></pre>
