protected function CreateSubLevel(NavigationItem $parent)
    {
        $navigation = new self();
        $navigation->isSubLevel = true;
        $navigation->naviParent = $parent;
        $navigation->SetTreeItem($this->tree, $this->item);
        return $navigation;
    }
protected function CreateSubLevel(NavigationItem $parent)
    {
        $navigation = new self();
        $navigation->isSubLevel = true;
        $navigation->naviParent = $parent;
        $navigation->SetTreeItem($this->tree, $this->item);
        return $navigation;
    }
protected function CreateSubLevel ( NavigationItem $ parent ) { $ navigation = new self ( ) ; $ navigation -> isSubLevel = true ; $ navigation -> naviParent = $ parent ; $ navigation -> SetTreeItem ( $ this -> tree , $ this -> item ) ; return $ navigation ; }
Creates a navigation renderer for a sub level
@param NavigationItem $parent
@return Navigation
Creates a navigation renderer for a sub level