public function render()
    {
        if ($this->isAfterLastPage()) {
            $this->invokeFinishers();
            $parentResponse = $this->response->getParentResponse();
            if ($parentResponse !== null) {
                foreach ($this->response->getHeaders()->getAll() as $key => $value) {
                    $parentResponse->getHeaders()->set($key, $value, true);
                }
            }
            return $this->response->getContent();
        }

        $this->formState->setLastDisplayedPageIndex($this->currentPage->getIndex());

        if ($this->formDefinition->getRendererClassName() === null) {
            throw new RenderingException(sprintf('The form definition "%s" does not have a rendererClassName set.', $this->formDefinition->getIdentifier()), 1326095912);
        }
        $rendererClassName = $this->formDefinition->getRendererClassName();
        $renderer = new $rendererClassName();
        if (!($renderer instanceof RendererInterface)) {
            throw new RenderingException(sprintf('The renderer "%s" des not implement RendererInterface', $rendererClassName), 1326096024);
        }

        $controllerContext = $this->getControllerContext();
        $renderer->setControllerContext($controllerContext);

        $renderer->setFormRuntime($this);
        return $renderer->renderRenderable($this);
    }
public function render()
    {
        if ($this->isAfterLastPage()) {
            $this->invokeFinishers();
            $parentResponse = $this->response->getParentResponse();
            if ($parentResponse !== null) {
                foreach ($this->response->getHeaders()->getAll() as $key => $value) {
                    $parentResponse->getHeaders()->set($key, $value, true);
                }
            }
            return $this->response->getContent();
        }

        $this->formState->setLastDisplayedPageIndex($this->currentPage->getIndex());

        if ($this->formDefinition->getRendererClassName() === null) {
            throw new RenderingException(sprintf('The form definition "%s" does not have a rendererClassName set.', $this->formDefinition->getIdentifier()), 1326095912);
        }
        $rendererClassName = $this->formDefinition->getRendererClassName();
        $renderer = new $rendererClassName();
        if (!($renderer instanceof RendererInterface)) {
            throw new RenderingException(sprintf('The renderer "%s" des not implement RendererInterface', $rendererClassName), 1326096024);
        }

        $controllerContext = $this->getControllerContext();
        $renderer->setControllerContext($controllerContext);

        $renderer->setFormRuntime($this);
        return $renderer->renderRenderable($this);
    }
public function render ( ) { if ( $ this -> isAfterLastPage ( ) ) { $ this -> invokeFinishers ( ) ; $ parentResponse = $ this -> response -> getParentResponse ( ) ; if ( $ parentResponse !== null ) { foreach ( $ this -> response -> getHeaders ( ) -> getAll ( ) as $ key => $ value ) { $ parentResponse -> getHeaders ( ) -> set ( $ key , $ value , true ) ; } } return $ this -> response -> getContent ( ) ; } $ this -> formState -> setLastDisplayedPageIndex ( $ this -> currentPage -> getIndex ( ) ) ; if ( $ this -> formDefinition -> getRendererClassName ( ) === null ) { throw new RenderingException ( sprintf ( 'The form definition "%s" does not have a rendererClassName set.' , $ this -> formDefinition -> getIdentifier ( ) ) , 1326095912 ) ; } $ rendererClassName = $ this -> formDefinition -> getRendererClassName ( ) ; $ renderer = new $ rendererClassName ( ) ; if ( ! ( $ renderer instanceof RendererInterface ) ) { throw new RenderingException ( sprintf ( 'The renderer "%s" des not implement RendererInterface' , $ rendererClassName ) , 1326096024 ) ; } $ controllerContext = $ this -> getControllerContext ( ) ; $ renderer -> setControllerContext ( $ controllerContext ) ; $ renderer -> setFormRuntime ( $ this ) ; return $ renderer -> renderRenderable ( $ this ) ; }
Render this form.

@return string rendered form
@api
@throws RenderingException
Render this form .