C#

using System;
using System.Data;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.ComponentModel;
using BookStoreBLL;

namespace WebService1
{
    /// <summary>
    /// Summary description for Service1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    public class Service1 : System.Web.Services.WebService
    {

        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }
        OrderedBooksCollection coll;
        BooksBLL bll;
        UsersBLL userBll;
        OrdersBLL orderBll;
        [WebMethod]
        public Book[] AllBooks()
        {
            bll = new BooksBLL("C");
            return bll.allBooks();
            
        }

        [WebMethod]
        public ReturnedOrderInfo ExecuteOrder(User u, Order o)
        {
            ReturnedOrderInfo info = new ReturnedOrderInfo();
            
            info.OrderNumber = 0;
            userBll = new UsersBLL("C");
            UserRoles role = userBll.verifyUser(u.UserName, u.PW);
            if (role == UserRoles.BadPass || role == UserRoles.None || role == UserRoles.NoUsers)
            {
                info.Status = orderStatus.UnauthorizedUser;
                return info;
            }
            //bll = new BooksBLL("C");
            info = orderBll.ProcessOrder(o);
            return info;
        }



    }
}