void SetMasterDetailPositions(int masterId, int detailId)
    {
        var masterPosition = masterBindingSource.Find("id", masterId);
        if (0 <= masterPosition)
        {
            masterBindingSource.Position = masterPosition;
            var detailPosition = detailBindingSource.Find("id", detailId);
            if (0 <= detailPosition)
            {
                detailBindingSource.Position = detailPosition;
            }
        }
    }

var detailPosition = detailBindingSource.Find("id", detailId);

System.ArgumentException occurred
  HResult=0x80070057
  Message=DataMember property 'id' cannot be found on the DataSource.