//删除订单
public void Remove(string orderId)
{
using (var db = new OrderDB())
{
var order = db.Order.Include("Orderdetails").SingleOrDefault(o => o.CustomerNum == orderId);
db.OrderDetail.RemoveRange(order.OrderDetails);
db.Order.Remove(order);
db.SaveChanges();
}
}
//public List<Order> Orders = new List<Order>();
//添加订单
public void Add(Order order)
{
using (var db = new OrderDB())
{
db.Order.Add(order);
//db.Order.Attach(order);
//db.Entry(order).State = EntityState.Added;
db.SaveChanges();
}
}
//更新订单
public void Update(Order order)
{
using (var 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();
}
}
