Prado\Web\UI\WebControls\TWizard::allowNavigationToPreviousStep PHP 메소드

    protected function allowNavigationToPreviousStep()
    {
        if (($index = $this->getPreviousStepIndex(false)) !== -1) {
            return $this->getWizardSteps()->itemAt($index)->getAllowReturn();
        } else {
            return false;
        }
    }