/// <summary>
/// 將新物件加入 invoice EntitySet 的方法已被取代。請考慮改為使用關聯的 ObjectSet<T> 屬性的 .Add 方法。
/// </summary>
public void AddToinvoice(invoice invoice)
{
base.AddObject("invoice", invoice);
}
/// <summary>
/// 建立新 invoice 物件。
/// </summary>
/// <param name="invoice_id">invoice_id 屬性的初始值。</param>
public static invoice Createinvoice(global::System.Int32 invoice_id)
{
invoice invoice = new invoice();
invoice.invoice_id = invoice_id;
return invoice;
}