title: UserControl Default Value in Property
body: <p>I have a UserControl with a few boolean properties in it. I would like them to be set to true by default if not set explicitly in the .aspx page, or at least force them to be declared if there's no way to set a default. I know there is a way to do this because lots of controls have required properties that break your app when you try to run it and they're not declared.</p>
  
  <p>How do I do this?</p>
  
  <p>Example:</p>
  
  <pre><code>&lt;je:myControl runat="server" id="myControl" showBox="False"&gt;
  </code></pre>
  
  <p>I want the system to either break or set the default to "true" if showBox is left out of this declaration.</p>
  
  <p>Thanks!</p>