//Update
public static void Update(Customer customer, int id, string firstName, string lastName, string email, string telephone)
{
customer.ID = id;
customer.FirstName = firstName;
customer.LastName = lastName;
customer.EmailAddress = email;
customer.Telephone = telephone;
}
//Create
public static Customer Create (int id, string firstName, string lastName, string email, string telephone)
{
Customer customer = new Customer();
customer.ID = id;
customer.FirstName = firstName;
customer.LastName = lastName;
customer.EmailAddress = email;
customer.Telephone = telephone;
customers.Add(customer);
return customer;
}
public static void Add(Customer customer)
{
customers.Add(customer);
}