private function CalcLevel() { $this->level = 0; if (!$this->isSubLevel || $this->isEmpty) { return; } $parent = $this->naviTree->ParentOf($this->naviItem); while ($parent) { ++$this->level; $parent = $this->naviTree->ParentOf($parent); } }
protected function ParentID() { $parent = $this->tree->ParentOf($this->item); return $parent ? $parent->GetID() : '0'; }