Pittsburgh Business Daily

How to add the values of items in a list box in Visual Basic?

How do you add the numeric values within a list box to equal a sum for the list box? I know how to add numbers to a list box, but I am unsure on how to add the numeric values to have a total value for the box. Any help is appreciated.

Public Comments

1. Dim counter As Integer = 0 For i As Integer = 0 To (ListBox1.Items.Count - 1) counter += Val(ListBox1.Items.Item(i)) Next Label1.Text = counter what this code snippet will do is add the value of numbers in the listbox from item 1 to the last item into the counter. then put that value in a label1 for you to see. the ListBox1.Items.Item(number), which is 0 based, that means the count starts at 0 instead of 1, it will return whatever is in that location in the listbox where number is an integer. the ListBox1.Items.Count returns the total number of items in your listbox.