我正在使用Woocommerce的一个片段，它会为购物车的总金额增加一笔附加费。 我想知道是否有办法排除某个产品类别或失败，产品？
我正在使用的代码是：
public partial class MainWindow : Window
{
public static List<SignalRounding> SignalR;
public MainWindow()
{
InitializeComponent();
SignalR = new List<SignalRounding>();
var r = SignalR.Where(t => t.time >= DateTime.Now.AddMinutes(-10))
.GroupBy(g => g.symbol)
.Select(s => new
{
Symbol = s.Key,
Quantity = s.Count(),
LastUpdated = s.Max(x => x.time),
Price = s.Single(l => l.time == s.Max(x => x.time)).price,
Round = s.Single(l => l.time == s.Max(x => x.time)).round
})
.OrderByDescending(x => x.LastUpdated)
.ThenByDescending(x => x.Quantity);
addStuff();
lv.ItemsSource = r;
}
private void addStuff()
{
for (int i = 0; i < 15; i++)
{
SignalR.Insert(0, new SignalRounding()
{
time = DateTime.Now,
symbol = i % 10 == 0 ? "second" : i % 5 == 0 ? "third" : "first",
price = 0.25 * i,
round = i
});
Thread.Sleep(500);
}
}
}
public class SignalRounding
{
public DateTime time { get; set; }
public string symbol { get; set; }
public double price { get; set; }
public double round { get; set; }
}