Question

I am working on some homework for class, and decided to add some extra stuff, and wound up confusing myself a bit. I have tried various comparison methods, and none of them seem to work, but I don’t understand why.

Basically when an order is added to the system, it creates an instance of the class ‘OrderInfo’, and adds it to an ArrayList. In my code, I am using a foreach() loop to find the class instance that matches which entry in the ListBox they clicked, but something is wrong.

private void ordersListBox_DoubleClick(object sender, EventArgs e)
{
    if (ordersListBox.SelectedItem != null)
    {
        foreach (OrderInfo i in ordersList)
        {
            if (String.Compare(i.GetClientName(), ordersListBox.ToString(), true) == 0)
            {
                MessageBox.Show(i.GetClientName());
                break;
            }
        }
    }
}

Answer 1

Instead of

 if (String.Compare(i.GetClientName(), ordersListBox.ToString(), true) == 0)

try

 if (String.Compare(i.GetClientName(), ordersListBox.SelectedValue.ToString(), true) == 0)