Set Font size using property info

Here's what I've got: I'm trying to set properties stored in a database. Everything else seems to work fine except for the font-size. On the aspx page it would look like <asp:Label ID=mylabel font-size=Smaller/>
My problem is that the property is called font and when I try to set that = to Smaller it is looking for a numeric value. How do I get to the size sub property of font to set the font-size = Smaller?
Dim ctrl as control
ctrl = ControlHold.FindControl("myLabel")
                Dim Prop As String
                Prop = "font"
                Dim prop_info() As PropertyInfo = ctrl.GetType.GetProperties
                For Each pi As PropertyInfo In prop_info
                    If pi.Name.Equals(Prop) Then
                        Dim convertedValue As Object = Nothing
                        Dim converter As System.ComponentModel.TypeConverter = System.ComponentModel.TypeDescriptor.GetConverter(pi.PropertyType)
                        If ((Not (converter) Is Nothing) _
                                    AndAlso converter.CanConvertFrom(.Item(2).GetType)) Then
                        'Note: .Item(2) = "Smaller" pulled from the database.
                            convertedValue = converter.ConvertFrom(.Item(2))
                        Else
                            convertedValue = Convert.ChangeType(.Item(2), pi.PropertyType)
                        End If
                        pi.SetValue(ctrl, convertedValue, Nothing)
                    End If
                Next