//刷新
public void Update(Order order)
{
using (var db = new OrderDB())
{
db.order.Attach(order);
db.Entry(order).State = EntityState.Modified;
order.list.ForEach(
item => db.Entry(item).State = EntityState.Modified);
db.SaveChanges();
}
}
public void AddOrder(Order or)
{
//if (order.Contains(or))
// throw new Exception("The order has been existed");
//order.Add(or);
using (OrderDB db = new OrderDB())
{
db.order.Add(or);
db.SaveChanges();
}
}