title: How to load asp:Content into a subpage in ASPX
body: <p>I have a master page where I am calling another sub-page using the 
  <code>&lt;asp:Content&gt;&lt;/asp:Content&gt;</code></p>
  
  <ul>
  <li>Default.aspx + master = Homepage</li>
  <li>why_choose.aspx + master = Subpage</li>
  </ul>
  
  <p>Inside the Subpage I have a menu which other Subpages will also share, so instead of adding  the menu in each Subpage, is there any way I can add a <code>&lt;asp:Content&gt;&lt;/asp:Content&gt;</code> within the Subpage itself to load the menu?</p>
  
  <p>If so, how do I do that?</p>