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How to create a shopping cart?

I am trying to create a shopping cart.
on the first page the user will select which items to buy, next page they will confirm all purchases and on the last page an invoice must be displayed

Im having alot of trouble with the first page. I dont know how to select the items in a gridview store and them into an array or session variable. I tried using doin this:
Expand|Select|Wrap|Line Numbers
  1.  Dim row As GridViewRow = grdProducts.SelectedRow
  3. AddItem(i).ID = CInt(grdProducts.SelectedRow.Cells(0).Text)
  4. AddItem(i).Name = grdProducts.SelectedRow.Cells(1).Text
  5. AddItem(i).Code = grdProducts.SelectedRow.Cells(2).Text
  6. AddItem(i).Price = CInt(grdProducts.SelectedRow.Cells(3).Text)
  8. Session("AddedItem") = AddItem
  10. Dim NewData As New TableCell
  11. Dim NewRow As New TableRow
  13. NewData.Text = CStr(AddItem(1).ID)
  14. NewRow.Cells.Add(NewData)
  15. NewData = New TableCell
  16. NewData.Text = AddItem(1).Name
  17. NewRow.Cells.Add(NewData)
  18. NewData = New TableCell
  19. NewData.Text = AddItem(1).Code
  20. NewRow.Cells.Add(NewData)
  21. NewData = New TableCell
  22. NewData.Text = CStr(AddItem(1).Price)
  23. NewRow.Cells.Add(NewData)
  25. Table1.Rows.Add(NewRow)
but it still does not work
Oct 20 '10 #1
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