title: How to build a group of constant variables in c#
body: <p>How can I built a group of constant variable in c#? </p>
  
  <p>For example :</p>
  
  <pre><code>IconType {
      public constant string folder = "FOLDER";
      public constant string application = "APPLICATION";
      public constant string system = "SYSTEM";
  }
  </code></pre>
  
  <p>Then I need to use it like this ways
  IconType.system
  but I don't want to do declaration like IconType type = new IconType(), I want to direction access to its variable.</p>
  
  <p>It just looks like JOptionPanel in java, when I want to display the icon I just need to call this JOptionPane.WARNING_MESSAGE </p>