Prado\Web\UI\WebControls\TTabPanel::getActiveView PHP Method

    public function getActiveView()
    {
        $activeView = null;
        $views = $this->getViews();
        if (($id = $this->getActiveViewID()) !== '') {
            if (($index = $views->findIndexByID($id)) >= 0) {
                $activeView = $views->itemAt($index);
            } else {
                throw new TInvalidDataValueException('tabpanel_activeviewid_invalid', $id);
            }
        } else {
            if (($index = $this->getActiveViewIndex()) >= 0) {
                if ($index < $views->getCount()) {
                    $activeView = $views->itemAt($index);
                } else {
                    throw new TInvalidDataValueException('tabpanel_activeviewindex_invalid', $index);
                }
            } else {
                foreach ($views as $index => $view) {
                    if ($view->getActive()) {
                        $activeView = $view;
                        break;
                    }
                }
            }
        }
        if ($activeView !== null) {
            $this->activateView($activeView);
        }
        return $activeView;
    }