Which is the more efficient code?

Code:
    Private Sub Test()
        For Each row As DataRow In dtMyTable.Rows
            Debug.Print("{0}", row(0))
        Next
    End Sub

    Private Sub Test2()
        If dtMyTable.Rows.Count > 0 Then
            For Each row As DataRow In dtMyTable.Rows
                Debug.Print("{0}", row(0))
...