[DaiToBu]

Well I tried to return a string into the listbox, but the items doesn't align even.

This is my ToString, the three value is from getting value.

        public override string ToString()
        {
            return String.Format("{0,-25} {1,-7} {2,-1:F}", companyName, stock, date);
        }

Result on the listbox is

Publix         PUB   1/23/2003
Target Store      TS   1/23/2003

[Skydiver]

Is that really the output? There isn't close to 25 characters before the stock symbol. Is that just your exaggerated output for us?

Anyway, remember that the default font used is a proportional font rather than a fixed width font. So kerning happens and some strings will use up more or less space than others. If you want your columns to line up, I suggest using a ListView or DataGridView instead.

[DaiToBu]

Yeah that was how the output. I guess the problem with the view is font size and font type. Maybe I try to reverse the listbox to listview, but hopefully it easy to implement.