i have created the classes for the menu items and i cannot figure out how to get a price when someone someone order a pizza and a the toppings.I also cannot figure out how to store the pizza name,price and toppings when i click the submit order button.I am getting the pizza and prices from a database.

here is the pizza class

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;


namespace ItalianoLIB.BLL
{
   
   public class Pizza
    {

       public string pizzaName { get; set; }
       public string toppingName { get; set; }
       public double toppingPrice { get; set; }
       public double pizzaPrice { get; set; }

      

    }
}

here is the pizza menu form

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;




namespace ItalianoWIN.PLL
{
     
    public partial class PizzaMenu : Form 
    {
        public string newPizzaName { get; set; }
        public string newToppingName { get; set; }
        public double newToppingPrice { get; set; }
        public double newPizzaPrice { get; set; }

        public PizzaMenu()
        {  

            InitializeComponent();
        }

        private void Pizza_Load(object sender, EventArgs e)
        {
            
            //new connection from the DButils class
            SqlConnection con = new SqlConnection(ItalianoLIB.DLL.DButils.CONSTR);
            con.Open();

            //fill Pizza type combo box
            SqlDataAdapter da = new SqlDataAdapter("select * from pizza", con);
            DataTable dt = new DataTable();
            da.Fill(dt);

            //adds the pizza name and price in the combo box
            foreach (DataRow dr in dt.Rows)
            {
                cboPizzaType.Items.Add(dr["PizzaType"].ToString() + dr["PizzaPrice"].ToString());
            } 


            //fill toppings listbox
            SqlDataAdapter da2 = new SqlDataAdapter("select * from Topping",con);
            DataTable dt2 = new DataTable();
            da2.Fill(dt2);


            for (int i = 0; i < dt2.Rows.Count; i++)
            {
                lstToppings.Items.Add(dt2.Rows[i]["ToppingName"]);
            }
            
            

            con.Close();

           
        }

        private void cboPizzaType_SelectedIndexChanged(object sender, EventArgs e)
        {

            
        }

       
        private void lstToppings_SelectedIndexChanged(object sender, EventArgs e)
        {
            
        }

        private void bnPizOrd_Click(object sender, EventArgs e)
        {
           
          
            
            //Brings the user back to the main form
            this.DialogResult = DialogResult.OK;
        }

        private void bnAddTop_Click(object sender, EventArgs e)
        {
           

            object obj = lstToppings.SelectedItem;
            lstSelTop.Items.Add(obj);
            lstToppings.Items.Remove(obj); 

        }

        private void bnDelTop_Click(object sender, EventArgs e)
        {
            object obj = lstSelTop.SelectedItem;
            lstToppings.Items.Add(obj);
            lstSelTop.Items.Remove(obj);
          
        }
    }
}