VB Code:
'put this in your INIT code
'assuming you have
' Col1 as Name/Descriptio
' Col2 as Price
' Col3 as Qty
' Col4 as Amt
lvw1.ListItems.Clear
Set li = lvw1.ListItems.Add(, "totalp")
li.SubItems(3) = "0.00" 'total amt
'in your calculate procedure
Dim li as ListItem
Dim amt as Double
Set li = lvw1.ListItems.Add(, [b]YourUniqueID][/b], Text1)
li.SubItems(1) = Text2 'price
li.SubItems(2) = Text3 'qty
amt = Text2 * Text3
li.SubItems(3) = amt 'amt
lvw1.ListItems("totalp").SubItems(3) = lvw1.ListItems("totalp").SubItems(3) + amt
you can also have a gloval var to hold the total amount so that you will only access once the lisitem's (totalp) subitem(3). say