| Insert(HtmlNodeItem) | Insert a new node prior to the specified Node in this collection. |
| Insert(HtmlNodeItem, String) | Insert a new node prior to the specified Node in this collection. |
| Insert(Int32, T) | Insert an item into the collection at the specified ordinal index. |
| Insert(String, String) | Insert the provided HTML before the specified Node in the appropriate level. |
| Insert(Int32, String, Boolean) | Insert a new node prior to the specified Node in this collection. |