title: Is there an #IF DEBUG for Asp.net markup?
body: <p>Can I do something like this in the markup of an asp.net page, based off the "Define DEBUG constant" setting?</p>
  
  <pre><code>#IF (DEBUG) THEN
    &lt;asp:TextBox ID="TextBox1" runat="server"&gt;You're in debug mode&lt;/asp:TextBox&gt;
  #END IF
  </code></pre>