Hello , I would like to ask you guys some question about this problem. I wasn't sure if this is issue or not . So, I posted this on discussion.
I currently try to parse each HtmlNode and it's xpath by tag name. After I initially load document through htmlDocument.Load( string html ) and select nodes by tag, all of htmlNode in htmlDocument.DocumentNodes lose their reference to its parent.
Please let me know if you have any idea.