/// <exception cref="System.IO.IOException"></exception>
private void Seek(string path)
{
if (!path.Equals(current))
{
iterator.Reset();
tw.Reset();
tw.AddTree(iterator);
tw.Filter = PathFilter.Create(path);
current = path;
if (!tw.Next())
{
throw new FileNotFoundException(path);
}
ptr = tw.GetTree <WorkingTreeIterator>(0);
if (ptr == null)
{
throw new FileNotFoundException(path);
}
}
}