title: get namespace in windows phone silverlight 8.1
body: <p>As I'm creating a windows phone application I added a feature of adding a file from SDCard using this <a href="http://dotnet.dzone.com/articles/building-file-picker-windows" rel="nofollow noreferrer">article</a> which was a windows phone 8 application. After this I re targeted to windows phone 8.1 which became <code>Windows phone silverlight 8.1 app</code>. Now I'm trying to add Filepicker support which is Add file from Phone or SDCard. I tried this <a href="http://code.msdn.microsoft.com/windowsapps/File-picker-sample-9f294cba" rel="nofollow noreferrer">sample</a> which is <code>Windows phone 8.1</code>. </p>
  
  <p>For this I have to add ContinutionManager Class which having namespaces suggested from this <a href="http://msdn.microsoft.com/en-US/library/windows/apps/xaml/dn631755.aspx#mainSection" rel="nofollow noreferrer">documentation</a> </p>
  
  <pre><code>using Windows.UI.Xaml;
  using Windows.UI.Xaml.Controls; 
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/bQ6xD.png" alt="enter image description here"></p>
  
  <p>So. What are the options available for me to add namespace which windows phone 8 app is targeted to windows phone 8.1</p>
  
  <p><strong>Edit:</strong></p>
  
  <p><em>In other Words:</em></p>
  
  <p><img src="https://i.stack.imgur.com/aRiIN.png" alt="enter image description here"></p>
  
  <p>If you use Blank App(Windows Phone) I can able to use namespace. &amp; using Blank App(Windows phone Silverlight) I can't get the namespace</p>