DataGridViewComboBoxColumn question

[bfoley]

I have a datagridviewcomboboxcolumn that I am populating this way :

'---------------------------------------------------------------------
' If person is editing a record, their previous choice should always be the first 
' in the list
'---------------------------------------------------------------------
If intNameKey <> 0 Then	
    strSql = "select '1' as sort_seq, name_key, species from species " & _
                "where name_key = " & intNameKey & " " & _
                "  and upper(name_type) = 'FISH' " & _
                "union " & _
                "select '2' as sort_seq, name_key, species from species " & _
                "where name_key <> " & intNameKey & " " & _
                "  and upper(name_type) = 'FISH' " & _
                "order by sort_seq, species"
End If

'---------------------------------------------------------------------
' If person is adding a record, show fish in alpha order.
'---------------------------------------------------------------------
If intNameKey = 0 Then	
    strSql = "select '1' as sort_seq, name_key, species from species " & _
               "where upper(name_type) = 'FISH' order by species"
End If

objDA = New SqlDataAdapter(strSql, objConn)
objDS = New DataSet
objDA.Fill(objDS, "species")
objConn.Close()

With Me.cboSpecies     (defined as a datagridviewcomboboxcolumn)
    .DataSource = objDS.Tables("species")
    .DisplayMember = "species"
    .ValueMember = "name_key"
    .DataPropertyName = "name_key"
End With
strSpecies = objDS.Tables("species").Rows(0).Item(2).ToString

I am doing the following code so that there is no blank in the first line of the combobox where the user is in edit mode. If I don't do this, there is a blank line, followed by the value previously chosen, followed by the rest of the table.

Private Sub dgvFish_CellFormatting(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) Handles dgvFish.CellFormatting

    If e.ColumnIndex = Me.dgvFish.Columns(intSpeciesCol).Index And e.RowIndex >= 0 Then
        Dim d As DataGridViewComboBoxCell = Me.dgvFish.Rows(e.RowIndex).Cells(e.ColumnIndex)
        If e.Value = Nothing And d.Items.Count > 0 Then
            e.Value = strSpecies
        End If
    End If
End Sub

Loading the data works fine. My problem is that if the user doesn't make any changes and hits the <UPDATE> button, when I loop thru each line of the datagridview, I can't seem to get the value (name_key) behind the cboSpecies. Here is what I am using :
Me.dgvFish.Rows(intRowIdx).Cells(3).Value to try to get the value. Any help would be greatly appreciated.