title: MVC Razor helper does not exist in current context
body: <p>I have created a custom razor helper in my MVC4 Web application that I need to be usable in all of my views.  </p>
  
  <p>In all of my view pages, I can't seem to use my custom helper. VS2012 doesn't just see it.  </p>
  
  <p>How Can I resolve this please ?</p>
  
  <p><strong>EDIT</strong>: It actually works when I run the page, it's just VS that doesn't see it. </p>
  
  <p>Here is my helper which is located in Helpers.cshtml within my AppCode folder.</p>
  
  <pre><code>@helper TextBox(string title, string id, string placeholder, bool required){    
  &lt;ul&gt;
      &lt;li&gt;
          &lt;label for="@id"&gt;@title&lt;/label&gt;
      &lt;/li&gt;
      &lt;li&gt;
          &lt;input type="text" name="this" class="@if (@required) {&lt;text&gt;required&lt;/text&gt;}" minlength="2" id="@id" placeholder="@placeholder" /&gt;
      &lt;/li&gt;
  &lt;/ul&gt;
  }
  </code></pre>