title: Commenting in .aspx
body: <p>What is the correct way to comment inside an .aspx file? </p>
  
  <p>The HTML syntax for a comment:</p>
  
  <pre><code>&lt;!-- [COMMENT] --&gt;
  </code></pre>
  
  <p>This doesn't work, I get the following:
  "ASP.NET runtime error:Only Content controls are allowed directly in a content page that contains Content controls."</p>
  
  <p>I have also tried ', //, #, and --</p>