public void Delete(Uri uri)
 {
     try
     {
         var blob = _blobFactory.GetBlob(uri);
         _blobFactory.Delete(blob.ID);
         _blobFactory.Delete(uri);
     }
     catch (Exception ex)
     {
     }
 }
 private static void DeleteBlob(Uri blobId, StringBuilder sb, IBlobFactory blobFactory)
 {
     sb.AppendFormat("Deleting: {0}<br>", blobId);
     blobFactory.Delete(blobId);
 }