Prado\Web\UI\WebControls\TReadOnlyDataSource::__construct PHP Method

    public function __construct($dataSource, $dataMember)
    {
        if (!is_array($dataSource) && !$dataSource instanceof IDataSource && !$dataSource instanceof \Traversable) {
            throw new TInvalidDataTypeException('readonlydatasource_datasource_invalid');
        }
        $this->_dataSource = $dataSource;
        $this->_dataMember = $dataMember;
    }