ListStrategy::getProvider

protected function getProvider(): DataProvider
{
	if (!$this->provider)
	{
		$filterFactory = Container::getInstance()->getFilterFactory();
		$settings = $filterFactory->getSettings($this->getEntityTypeId(), $this->getGridId());

		$this->provider = $filterFactory->getDataProvider($settings);
		if ($this->provider instanceof FactoryOptionable)
		{
			$this->provider->setForceUseFactory(true);
		}
	}

	return $this->provider;
}