magento 2 create collection factory
class Main extends \Magento\Framework\View\Element\Template
{
protected $_datiFactory;
public function __construct(
\Magento\Framework\View\Element\Template\Context $context,
DatiFactory $datiFactory,
array $data = []
)
{
parent::__construct($context, $data);
$this->_datiFactory = $datiFactory;
}
}