public override DirectoryInfo[] GetDirectories( DirectoryInfo dirInfo )
{
string path = dirInfo.FullName;
string prefix = GetAzurePath( dirInfo.FullName );
List<DirectoryInfo> dirInfoList = new List<DirectoryInfo>();
IEnumerable<CloudBlobDirectory> blobDirs = _blobClient.ListBlobs( prefix ).OfType<CloudBlobDirectory>();
foreach ( var dir in blobDirs )
{
DirectoryInfo di = new DirectoryInfo( dir.Uri.AbsolutePath.ToFileSystemPath( path ) );
dirInfoList.Add( di );
}
return dirInfoList.ToArray<DirectoryInfo>();
}