| AddDirectory(TreeNodeCollection, DirectoryInfo) | Given the specified directory, this function resolves its icon and adds a new tree node to the end of the source TreeNodeCollection collection. This tree node contains the directory name and its icon as image index. |
| AddDirectory(TreeNodeCollection, String) | Given the specified directory path, this function resolves its icon and adds a new tree node to the end of the source TreeNodeCollection collection. This tree node contains the directory name and its icon as image index. |