title: Folder.Bind - "Id is malformed" - Exchange Web Services Managed API
body: <p>I'm passing the <code>Folder.Id.UniqueId</code> property of a folder retrieved from a <code>FindFolders</code> query via the query string to another page.  On this second page I want to use that <code>UniqueId</code> to bind to the folder to list its mail items:</p>
  
  <pre><code>string parentFolderId = Request.QueryString["id"];
  ...
  Folder parentFolder = Folder.Bind(exchangeService, parentFolderId);
  // do something with parent folder
  </code></pre>
  
  <p>When I run this code it throws an exception telling me the Id is malformed.  I thought maybe it needs to be wrapped in a <code>FolderId</code> object:</p>
  
  <pre><code>Folder parentFolder = Folder.Bind(exchangeService, new FolderId(parentFolderId));
  </code></pre>
  
  <p>Same issue.</p>
  
  <p>I've been searching for a while, and have found some suggestions about Base64/UTF8 conversion, but again that did not solve the problem.</p>
  
  <p>Anyone know how to bind to a folder with a given unique id?</p>