title: How do you set the background image of a form to a user-selected image?
body: <p>I have a <a href="http://en.wikipedia.org/wiki/Windows_Forms" rel="nofollow">Windows Forms</a> form, and I want the user to select the background image. That is, when the application starts the file dialog appears from where the user can select the image he/she wants as the background.</p>
  
  <p>How do I do this?</p>