title: Getting Header Values in WebApi 2 Controller
body: <p>What is the correct way to access a header value in a WebApi2 controller?   I have method that looks like this:</p>
  
  <pre><code>    [Route(Name ="Stuff")]
      public SysDataTablePager Get(string sEcho, int iDisplayStart)
  </code></pre>
  
  <p>It returns paged json data to a jquery DataTable.</p>
  
  <p>I am trying to this to get the search value.</p>
  
  <pre><code>var nameFilter = Convert.ToString(Request["sSearch_1"]);
  </code></pre>
  
  <p>But I am getting this error:</p>
  
  <p>Cannot apply indexing with [] to an expression of type 'System.Net.Http.HttpRequestMessage'  </p>