Question

我有一个程序，可以在引号列表中添加不同的引号。我在我的代码中将Quote添加到我的列表“ Quotes”中，然后尝试打印“ Quotes”并打印 “ System.Collections.Generic.List'1 [GetQuotes.Quote]” 如何获取要打印的值？

public static void LoadData()
{
    Quotes = new List<Quote>();
    Quotes.Add(new Quote(){
        HaulierName = "Hellmans",
        FulfillmentCenter = "BHX4",
        PalletQty = 2,
        Price = 122

    });
    Quotes.Add(new Quote(){
        HaulierName = "Pallet Online",
        FulfillmentCenter = "BHX4",
        PalletQty = 2,
        Price = 111.98
    });;
    Console.WriteLine(Quotes);
    Console.ReadLine();
}

Answer 1

您需要为ToString()类重写Quote方法。请参阅：https://docs.microsoft.com/en-us/dotnet/api/system.object.tostring?view=netframework-4.8

您可以通过以下方式做到这一点：

class Program {
    public class Quote {
        public string HaulierName { get; set; }
        public string FulfillmentCenter { get; set; }
        public int PalletQty { get; set; }
        public double Price { get; set; }

        public override string ToString() {
            return $"{HaulierName} {FulfillmentCenter} {PalletQty} {Price}";
        }
    }
    static void Main(string[] args) {
        {
            var Quotes = new List<Quote>();
            Quotes.Add(new Quote() {
                HaulierName = "Hellmans",
                FulfillmentCenter = "BHX4",
                PalletQty = 2,
                Price = 122

            });

            Quotes.Add(new Quote() {
                HaulierName = "Pallet Online",
                FulfillmentCenter = "BHX4",
                PalletQty = 2,
                Price = 111.98
            });

            foreach (var item in Quotes) {
                Console.WriteLine(item);
            }

            Console.ReadLine();
        }
    }
}

如果您真的想拥有：

Console.WriteLine(Quotes);

您可以在内部实现自己的集合类和ovverride ToString()方法。

如何打印列表值

1 个答案: