/// <summary>
 /// 用于向 Customer EntitySet 添加新对象的方法,已弃用。请考虑改用关联的 ObjectSet&lt;T&gt; 属性的 .Add 方法。
 /// </summary>
 public void AddToCustomer(Customer customer)
 {
     base.AddObject("Customer", customer);
 }
 /// <summary>
 /// 创建新的 Customer 对象。
 /// </summary>
 /// <param name="id">ID 属性的初始值。</param>
 public static Customer CreateCustomer(global::System.Int32 id)
 {
     Customer customer = new Customer();
     customer.ID = id;
     return customer;
 }