I am trying to make changes in sub item grid details of bundle product.
In magento 1 it was set form __construct method of app\code\core\Mage\Bundle\Block\Adminhtml\Catalog\Product\Edit\Tab\Bundle\Option.php as $this->setTemplate('bundle/product/edit/bundle/option.phtml');
and when i make any change in app\design\adminhtml\default\default\template\bundle\product\edit\bundle\option.phtml
it is reflecting properly.
Please note i am not making changes directly in core files this is just for confirmation i am using it.
But when i look into the _construct method of \vendor\magento\module-bundle\Block\Adminhtml\Catalog\Product\Edit\Tab\Bundle\Option.php setting of template is not their.
and when i tried to make changes in \vendor\magento\module-bundle\view\adminhtml\templates\product\edit\bundle\option.phtml
no changes being reflected.
If I enable a path hint for admin it shows me that it appears from \vendor\magento\module-ui\view\base\ui_component\templates\form\collapsible.xhtml
but their is no as such code which shows for this grid.
Can any one please tell me from where this details comes in magento2.