title: How to show all the content under the parent category?
body: <pre><code>category 1
         subcategory 1
         subcategory 2
  </code></pre>
  
  <p>now, when i click the  <code>category 1</code> it shows all the contents under subcategory 1 and   subcategory 2. thank you.</p>
  
  <p>but in the default drupal. although there are some contents under  <strong>subcategory 1 and   subcategory 2</strong> when i click <strong>category 1</strong>. it shows there no content....</p>
  
  <p>how to invoke all the content under all the subcategory. thank you.</p>