| Add | Create a new HtmlNodeItem, add it to the Collection, and return it to the caller. |
| Add(HtmlNodeItem) | Add an existing HtmlNodeItem to the Collection. |
| Add(String) | Add a new HtmlNodeItem to the collection by its content. |
| Add(String, Boolean) | Add a new HtmlNodeItem to the Collection by its content. |
| Add(String, String) | Add a new HtmlNodeItem to the collection by its node type and text. |