I have to get all children block in controller using parent block name or layout Magento 2.

Thanks in advanced.

2 Answers 2


Make sure your controller is same which loads the layout in which your block and its child blocks exits.

use Magento\Backend\App\Action\Context;
use Magento\Framework\View\Result\PageFactory;

class Edit extends \Magento\Backend\App\Action
  protected $resultPageFactory;

  public function __construct(
       Context $context,
       PageFactory $resultPageFactory
       $this->resultPageFactory = $resultPageFactory;

  $resultPage = $this->resultPageFactory->create();

  $blockInstance = $resultPage->getLayout()->getBlock('your.block.name');

  $childBlocks = $blockInstance->getChildNames();

  foreach($childBlocks as $blockName){
    $block = $resultPage->getLayout()->getBlock($blockName);

  • 1
    saras amithsing nice answer. May 15, 2017 at 6:07
  • It's working fine for me Thanks @ Amit Singh Jun 2, 2017 at 7:17
  • @AmitSingh, Please explain, $blockInstance->getChildNames(); here getChildNames() means? Oct 12, 2018 at 5:12

You can get all child blocks like this.

$allblocks = $block->getChildNames();

  foreach($allblocks as $blocks){
    $child_block = $this->resultPageFactory->create()->getLayout()->getBlock($blocks);
  • I have tried all that function which is used to get child blocks but it's not working. May 17, 2017 at 4:50

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