StringField::getFormattedValueForGrid

protected function getFormattedValueForGrid($fieldValue, int $itemId, Options $displayOptions)
{
	$isMultiple = $this->isMultiple();

	if ($isMultiple && is_array($fieldValue))
	{
		$values = $this->getPreparedArrayValues($fieldValue);
		return $this->render($displayOptions, $itemId, $values);
	}

	return $this->renderSingleValue($fieldValue, $itemId, $displayOptions);
}