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

    protected function activateView($view)
    {
        $this->setActiveViewIndex(-1);
        $this->setActiveViewID('');
        foreach ($this->getViews() as $index => $v) {
            if ($view === $v) {
                $this->setActiveViewIndex($index);
                $this->setActiveViewID($view->getID(false));
                $view->setActive(true);
            } else {
                $v->setActive(false);
            }
        }
    }