public bool OrderRenew(OrderDetails p2, string a, string b, string c, string d)
{
using (var db = new Orderdb())
{
try
{
p2.ordernum = a;
p2.goodname = b;
p2.customername = c;
p2.ordervalue = d;
db.Entry <OrderDetails>(p2).State = System.Data.Entity.EntityState.Modified;
db.SaveChanges();
return(true);
}
catch { return(false); }
}
}
public bool Orderdelete(List <OrderService> order, string a)
{
using (var db = new Orderdb())
{
try
{
var n = from OrderDetails god in order
where god.ordernum == a
select god;
foreach (var m in n)
{
db.Entry <OrderDetails>(m).State = System.Data.Entity.EntityState.Deleted;
db.SaveChanges();
}
return(true);
}
catch { return(false); }
}
}
public bool OrderFoundation(List <OrderService> order, string a, string b, string c, string d)
{
using (var db = new Orderdb())
{
try
{
OrderDetails p1 = new OrderDetails("1", "饺子", "张三", "10000");
OrderDetails p2 = new OrderDetails("2", "包子", "李四", "20000");
OrderDetails p3 = new OrderDetails("3", "馒头", "王五", "1000");
order.Add(p1);
order.Add(p2);
order.Add(p3);
OrderDetails pnew = new OrderDetails(a, b, c, d);
order.Add(pnew);
db.Order.Add(order);
db.SaveChanges();
return(true);
}
catch { return(false); }
}
}