sharppieces. drop down

I need help to fill drop down list control from sharppieces
http://sharppieces.codeplex.com/

I have table Product 

Product table has 2 columns  code and Description
0  Product A
1  Product B
3  Product C
4  Product D
0  Product X
88 Product c

if Code = 0 then it is a group name of product else it is a product item

I was trying the below script

If ds.Tables("Product") IsNot Nothing AndAlso ds.Tables("Product").Rows.Count > 0 Then                                        For i As Integer = 0 To ds.Tables("P ...