从多个文本框将多个项目添加到列表框

Question

I want to create a basket for a product and the user enters the product name, quantity and price and then to be put into a list box on the same line. Here is what I have so far

private void addToBasket_Click(object sender, EventArgs e)
    {

        string product = productName.Text;
        decimal quan = quantity.Value;
        int quant = Convert.ToInt32(quan);
        string p = this.price.Text;
        int price = Convert.ToInt32(p);
        basket.Items.Add(new ListBoxItem(product, quan, price));
    }
}

internal class ListBoxItem
{
    private string product;
    private decimal quan;
    private int price;

    public ListBoxItem(string product, decimal quan, int price)
    {
        this.product = product;
        this.quan = quan;
        this.price = price;
    }
}

When I click add it puts in the list box: BasketForm.ListBoxItem with no values relating to what I entered into the text box

Answer 1

When objects are bound to a (listbox) control, said control will by default use the ToString method to display the value. You could just override said method in your ListBoxItem class to make any control display the quantity, the item name and the unit price:

    public override string ToString()
    {
        return string.Format("{0}x {1} @{2}", quan, product, price);
    }