Some Quick VB.NET questions

[TType85]

I need some help with figuring out the best way to do somthing.

In VB6 I would use a UDT like this.

Type PO_Detail
    PO_Detail_ID
    PO_Number
    Line_Description
    ....
    ....
End Type

Type Purchase_Order
     PO_Number
     Vendor_ID
     ....
     ....
     PO_Detail()
End Type

I would just create the object and add elements as I needed (new po line details). I'm wondering in VB.NET is there a better way?

I am using Structure currently (UDT). Would it be better to use classes?

Somthing like

Public Class PurchaseOrder
     Properties, validation, etc
     PurchaseOrderDetail()  'Array
End Class
 
 
Public Class PurchaseOrderDetail
  Properties, validation, etc
End Class

It seems like a much cleaner way of doing it to me, but i'd like some input.

Thanks