title: How to get Used disk space in Windows Phone c#
body: <p>Is there any way to find out how much disk space has been occupied by isolated storage, one way in my mind is to iterated through all the files and get their size if there is any other way please share.</p>
  
  <p><strong>Update:</strong>
   I should be more clear about my requirement.</p>
  
  <p>Actually I want to display app disk space usage within application, I already know about <code>IsolatedStorageFile.AvailableFreeSpace</code> but it does not resolve my problem. On the other hand <a href="http://msdn.microsoft.com/en-us/library/system.io.isolatedstorage.isolatedstorage.usedsize%28v=vs.110%29.aspx" rel="nofollow">msdn page</a> claims that there is an <code>IsolatedStorage</code> class available in Windows Phone 8.0 Sdk under <code>System.IO.IsolatedStorage</code> which provides <code>UsedSize</code> property to evaluate used disk size but infact this class is not available in sdk. So if anybody has an idea about it please share.</p>