title: Why is CheckBoxFor producing runtime error
body: <p>The field the CheckBox is wired to is nullable.</p>
  
  <p>On my view I get the following error:</p>
  
  <blockquote>
    <p>Cannot implicitly convert type 'bool?'
    to 'bool'</p>
  </blockquote>
  
  <pre><code>&lt;%= Html.CheckBoxFor(model =&gt; model.Product.Exclusive) %&gt;
  </code></pre>
  
  <p>How do I fix it without having to change the database design?</p>