Add subitem data?

[anthony_pacitto3]

Okay, how do i add up all data in a certain subitem in each row of a listview
for example: in the second column or subitem of each row it has a number and there is a label that displays the total ammount added up from each row so if row 1 has the number "2" in the 2nd subitem and then row 2 has the number "2" as well it will then show up as "4" in the label.

[Edgemeal]

Okay, how do i add up all data in a certain subitem in each row of a listview

code removed (plonk!)