private void LoadParentSubDirectories(IList <DirectoryInfo> parentSubDir,
ObservableCollection <VideoFolder> existingchildren, VideoFolder parentdir)
{
for (int i = 0; i < parentSubDir.Count; i++)
{
if (parentSubDir[i] == null)
{
continue;
}
VideoFolder child = LoadDirInfo(parentdir, parentSubDir[i]);
var originalcopy = MovieDataSource.GetExistingCopy(child);
if (originalcopy != null)
{
child = originalcopy;
child.SetParentDirectory(parentdir);
}
existingchildren.Add(child);
}
if (parentSubDir.Count > 0)
{
parentdir.HasSubFolders = true;
}
}