title: Retrieve keys from JArray
body: <p>I'm using Json.net for a project and I need to get specific items (in that case "episode_key")  from an JArray. 
  I use that way to do so, but I'm wondering if there is another way (slighter) : </p>
  
  <p>foo is a JArray which a geted from : <code>var foo = data["foo"];</code></p>
  
  <pre><code>for (int i=0; i &lt; foo.Count(); i++) 
  {
     TvProgram prog = new TvProgram { Key = foo[i]["episode_key"].ToString() }; // set the episode key
  }
  </code></pre>
  
  <p>My json object look's like :</p>
  
  <pre><code>foo: [
  {
  episode_key: "32",
  ddr_timeframes: [],
  keywords: "",
  synopsis: ""
  },
  {
  episode_key: "542",
  keywords: "",
  synopsis: ""
  }]
  </code></pre>
  
  <p>Regards.</p>