title: Angularjs disable button if checkbox is checked
body: <p>I have a button on a form that I'd like to disable until one or more checkboxes have been selected. This is probably fairly simple to solve, but the button is not disabled when I use !result.isSelected.</p>
  
  <p>This is my button:</p>
  
  <pre><code>&lt;button class="btn btn-success" ng-click="send()"  ng-disabled="!result.isSelected" &lt;/button&gt;
  </code></pre>
  
  <p>And the checkbox:</p>
  
  <pre><code>&lt;input type="checkbox" class="checkbox-row" ng-model="result.isSelected" ng-click="selected()" /&gt;
  </code></pre>
  
  <p>Does anyone know of a better solution? Thanks for your help!</p>