Build an ASP.NET JavaScript Generator: Listing 1.

Passing values to CalculateTaxes.

Dim but As Button
Dim ProductId As String
Dim quantity As Integer
Dim price As Decimal
Dim discount As Decimal
Dim extendedPrice As Decimal

If e.Row.RowIndex  >= 0 Then
  but = CType(e.Row.Cells(4).Controls(0), Button)
  ProductId = e.Row.Cells(1).Text
  price = Convert.ToDecimal(e.Row.Cells(2).Text)
  discount = Convert.ToDecimal(e.Row.Cells(3).Text)
  quantity = Convert.ToDecimal(e.Row.Cells(4).Text)
  extendedPrice = price * quantity * (1 - discount)
  but.OnClientClick = "CalculateTaxes(" & taxRate & "," & 
    ProductId & ", " & quantity & ", " & 
    price & ", " & discount & ")"
End If

About the Author

Peter Vogel is a system architect and principal in PH&V Information Services. PH&V provides full-stack consulting from UX design through object modeling to database design. Peter tweets about his VSM columns with the hashtag #vogelarticles. His blog posts on user experience design can be found at http://blog.learningtree.com/tag/ui/.