title: How to set a windows form's AcceptButton to None at run time
body: <p>To set a form's AcceptButton at runtime, I'm doing this:</p>
  
  <pre><code>this.AcceptButton = this.btnButtonName;
  </code></pre>
  
  <p>But can anyone tell me how to clear the form's AcceptButton, something like:</p>
  
  <pre><code>this.AcceptButton = None; 
  </code></pre>
  
  <p>Thanks.</p>