public void AddOrder(Order order) //添加订单
{
using (var db = new OrderDB())
{
bool isExist = false;
if (GetOrderCounts() == 0)
{
orderList.Add(order);
}
else
{
foreach (Order one in orderList)
{
if (one.ToString() == order.ToString())
{
isExist = true;
}
}
if (!isExist)
{
orderList.Add(order);
db.Order.Add(order);
Console.WriteLine("订单添加成功");
}
}
db.SaveChanges();
}
}
private void button1_Click(object sender, EventArgs e)
{
using (OrderDB dB = new OrderDB())
{
dB.Order.Attach(order);
dB.Entry(order).State = EntityState.Modified;
order.OrderDetails.ForEach(
OrderDetail => dB.Entry(OrderDetail).State = EntityState.Modified);
dB.SaveChanges();
}
}
public void DeleteOrder(Order order) //删除订单
{
using (var db = new OrderDB())
{
if (orderList.Contains(order))
{
orderList.Remove(order);
db.Order.Remove(order);
Console.WriteLine("订单删除成功");
}
else
{
throw new MyAppException("该订单已经被删除，或从未添加到订单表中，无法删除");
}
db.SaveChanges();
}
}
