[2008] DataGridView conditional formatting - ok, but ...

I'm using what I think is a workaround for conditional formatting of a DataGridView. There must be a better way.
The problem I had was that when the user made a checkbox in column 0 = false, I couldn't get the overriding row style for the row to revert the normal/alternating style used by the grid. I can't believe that the code shown below is the best way of doing this, i.e. determining if the row index is odd or even, and then styling the row accordingly.
If anybody can help tidy this up a bit, it would be appreciated.
Thanks in advance.

Code:

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    Private Sub dgvCSVPreparation_CellMouseUp(ByVal sender As Object, _
                            ByVal e As System.Windows.Forms.DataGridViewCellMouseEventArgs) _
                            Handles dgvCSVPreparation.CellMouseUp

        ' Detect changes to checkbox column

        If TypeOf Me.dgvCSVPreparation.CurrentCell Is DataGridViewCheckBoxCell Then
            dgvCSVPreparation.EndEdit()
            Dim blnCellVal As Boolean = DirectCast(dgvCSVPreparation.CurrentCell.Value, Boolean)
            If blnCellVal Then
                Me.dgvCSVPreparation.CurrentRow.Selected = True
            End If
        End If

    End Sub

    Private Sub dgvCSVPreparation_CellFormatting(ByVal sender As System.Object, _
                    ByVal e As System.Windows.Forms.DataGridViewCellFormattingEventArgs) _
                    Handles dgvCSVPreparation.CellFormatting

        With Me.dgvCSVPreparation

            .DefaultCellStyle.BackColor = Color.White
            .DefaultCellStyle.ForeColor = Color.Black
            .AlternatingRowsDefaultCellStyle.BackColor = Color.WhiteSmoke
            .AlternatingRowsDefaultCellStyle.ForeColor = Color.Black

        End With

        With Me.dgvCSVPreparation.Rows(e.RowIndex)
            If .Cells(0).Value = True Then
                .DefaultCellStyle.BackColor = Color.Black
                .DefaultCellStyle.ForeColor = Color.White
            End If
        End With

    End Sub

    Private Sub dgvCSVPreparation_CellValueChanged(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvCSVPreparation.CellValueChanged

        With Me.dgvCSVPreparation.Rows(e.RowIndex)

            If e.RowIndex Mod 2 = 0 Then
                ' Even number
                .DefaultCellStyle.BackColor = Color.White
                .DefaultCellStyle.ForeColor = Color.Black

            Else
                ' Odd number
                .DefaultCellStyle.BackColor = Color.WhiteSmoke
                .DefaultCellStyle.ForeColor = Color.Black

            End If

        End With

    End Sub

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