title: Path to find files in Google Drive REST API
body: <p>I want to list all the files in a sub folder. I am not understanding the API reference. 
  Eg Path
  My path in Google Drive will be CR/CA/UP/files. 
  My path in Google Drive will be CR/NA/UP/files. 
  My path in Google Drive will be CR/DD/UP/files. </p>
  
  <p>For the string <a href="https://developers.google.com/drive/v2/reference/files/list" rel="nofollow">q list</a> provide by the google document, How should I pass this ?</p>
  
  <p>Here is the Q I'm using. Please Advice what I'm wrong for the Q</p>
  
  <pre><code>string Q = "'CR' IN parents and title = 'UP' and trashed = 'false' and mimeType = 'application/vnd.google-apps.folder'";
  IList&lt;File&gt; _Files = GoogleDriveHelper.GetFiles(service, Q);
  </code></pre>
  
  <p>When I'm using this it is work but i dont know refer to which parent folder CA,NA or DD</p>
  
  <pre><code>string Q = "title = 'UP' and trashed = 'false' and mimeType = 'application/vnd.google-apps.folder'";
  </code></pre>