Prado\Web\UI\WebControls\TMultiView::activateView PHP Метод

    protected function activateView($view, $triggerViewChangedEvent = true)
    {
        if ($view->getActive()) {
            return;
        }
        $triggerEvent = $triggerViewChangedEvent && ($this->getControlStage() >= \Prado\Web\UI\TControl::CS_STATE_LOADED || $this->getPage() && !$this->getPage()->getIsPostBack());
        foreach ($this->getViews() as $v) {
            if ($v === $view) {
                $view->setActive(true);
                if ($triggerEvent) {
                    $view->onActivate(null);
                    $this->onActiveViewChanged(null);
                }
            } else {
                if ($v->getActive()) {
                    $v->setActive(false);
                    if ($triggerEvent) {
                        $v->onDeactivate(null);
                    }
                }
            }
        }
    }