Dynamic create block in magento 2 and send as ajax call response?

Question

I want replacement of following in magento 2.x

$block = $this->getLayout()->createBlock('customer/form_login')->setTemplate('persistent/customer/form/login.phtml');
$this->getResponse()->setBody($block->toHtml());

Answer 1

You can try following way to create new block inside controller

<?php
namespace [Vendor]\[Module]\Controller\[ControllerName];
use Magento\Framework\App\Action\Context;
class [YourControllerAction] extends \Magento\Framework\App\Action\Action
{
 /**
 * Index constructor.
 *
 * @param Context $context
 */
 public function __construct(
 Context $context
 ) {
 parent::__construct($context);
 }
 /**
 * @return 
 */
 public function execute()
 {
 $block = $this->_view->getLayout()
 ->createBlock('Magento\Customer\Block\Form\Login')
 ->setTemplate('Magento_Customer::form/login.phtml')
 ->toHtml();
 $this->getResponse()->setBody($block);
 }
}

• Manish: this statement not get execute I am checking to print log before and after this statement. $block = $resultPage->getLayout() ->createBlock('Magento\Customer\Block\Form\Login') ->setTemplate('Magento_Customer::form/login.phtml') ->toHtml()
• Sohel Rana: Do you initialize $this->resultPageFactory by construct?
• Sohel Rana: check updated code
• 0xh8h: @Manish: whenever you change the __construct function, you need to remove /var/generation folder so Magento 2 can re-created the cache code
• Patryk: ERROR: $this->_view->getLayout()->getLayout() Pleas update :) All other line work fine. Thanks