Prado\Web\UI\WebControls\TCaptchaValidator::setCaptchaControl PHP Метод

The ID path is the dot-connected IDs of the controls reaching from the validator's naming container to the target control.

public setCaptchaControl ( $value )

    public function setCaptchaControl($value)
    {
        $this->setViewState('CaptchaControl', TPropertyValue::ensureString($value), '');
    }

TCaptchaValidator