Get values out of listbox without selecting

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Hi!

I've got a listbox with items to be rented, what i would like to do is to get the price for each item out of the listbox to display the total price in a textbox.

how do i get the values out of the listbox, have tried loads of different ways and can't make it work.

the strings in the list box looks like this:

Ford 2010 $130 2011-05-18 2011-05-20

not sure if it's any help but I really really do need som help!
Thanks!!

Posted 18-May-11 2:21am

girlie23

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Om Prakash Pant 18-May-11 8:46am

your question is not clear. can you add some code and more details?

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Wayne Gaylard · Answer 1 · 2011-05-18T02:51:00

The problem lies with the fact that the ListBox items are stored as strings. Ideally you should create a class for your rentable items something like this

C#

class ItemForRent
    {
        public string Description;
        public DateTime Year;
        public decimal Price;
        public DateTime AvailableFrom;
        public DateTime AvailableTo;
        public static List<ItemForRent> rentableItems()
        {
            //retrieve items from data source
            return new List<ItemForRent>();
        }
    }

Then you could have a List<itemforrent> as a form level variable, which you can bind to your ListBox like this:

C#

List<ItemForRent> rentableThings;
       public Form1()
       {
           InitializeComponent();
           rentableThings = ItemForRent.rentableItems();
           listBox1.DataSource = rentableThings;
       }

Then to get Total Price all you need do is this

C#

public decimal GetTotalPrice()
        {
            return rentableThings.Sum(item => item.Price);
        }

I think this is a better way to solve your problems. Hope this helps