public class DataTableForBulkInsert
{
    public static DataTable CreateDataTable()
    {
        var dataTable = new DataTable();

        dataTable.Columns.Add(new DataColumn("Id", typeof(int)));
        dataTable.Columns.Add(new DataColumn("Description", typeof(string)));

        return dataTable;
    }

    public static void MergeListInDataTable(DataTable dataTable, IEnumerable<Record> recordList)
    {
        Parallel.ForEach(
            recordList,
            (record) =>
            {
                lock (dataTable)
                {
                    dataTable.Rows.Add(
                       record.Id,
                       record.Description
                    );
                }
            });

    }
}