/// <summary>
/// update the order
/// </summary>
/// <param name="order">the order to be updated</param>
/*public void Update(Order order) {
* RemoveOrder(order.Id);
* orderList.Add(order);
* }
*/
public void updata(Order order, List <OrderDetail> removed, List <OrderDetail> newDetails)
{
using (var db = new OrderDB())
{
order.Details.AddRange(newDetails);
foreach (OrderDetail Detail in order.Details)
{
if (removed.Contains(Detail))
{
db.Entry(Detail).State = EntityState.Deleted;
}
else if (newDetails.Contains(Detail))
{
db.Entry(Detail).State = EntityState.Added;
}
else
{
db.Entry(Detail).State = EntityState.Modified;
}
}
db.SaveChanges();
db.Entry(order).State = EntityState.Modified;
db.SaveChanges();
}
}
public void Update(Order order)
{
using (var db = new OrderDB())
{
db.Order.Attach(order);
db.Entry(order).State = EntityState.Modified;
order.Details.ForEach(detail => db.Entry(detail).State = EntityState.Modified);
db.SaveChanges();
}
}
//private List<Order> orderList;
/// <summary>
/// constructor
/// </summary>
/// <summary>
/// add new order
/// </summary>
/// <param name="order">the order to be added</param>
public void AddOrder(Order order)
{
using (var db = new OrderDB())
{
db.Entry(order).State = EntityState.Added;
db.SaveChanges();
}
}
/// <summary>
/// update the order
/// </summary>
/// <param name="order">the order to be updated</param>
public void Update(Order order)
{
RemoveOrder(order.Id);
using (var db = new OrderDB())
{
db.Entry(order).State = EntityState.Added;
db.SaveChanges();
}
}///更新订单
/// <summary>
/// remove order
/// </summary>
/// <param name="orderId">id of the order which will be removed</param>
public void RemoveOrder(int orderId)
{
Order order = GetById(orderId);
using (var db = new OrderDB())
{
db.Entry(order).State = EntityState.Deleted;
db.SaveChanges();
}
}//数据库删除订单
