直接通过对象初始化器填充数组 [英] Populate array directly through object initializer

问题描述

我有这两个类：

    class Customer
    {
        public string Name;
        public string City;
        public Order[] Orders;
    }
    class Order
    {
        public int Quantity;
        public Product Product;
    }

然后在 Main 我执行以下操作：

And then in the Main I do the following:

            Customer cust = new Customer
            {
                Name = "some name",
                City = "some city",
                Orders = {
                    new Order { Quantity = 3, Product = productObj1 },
                    new Order { Quantity = 4, Product = productObj2 },
                    new Order { Quantity = 1, Product = producctObj3 }
                }
            };

但是我无法使用集合初始化程序初始化数组 ... 。
而且我知道这是可行的，即 string [] array = { A， B}; 在我看来是一样的。

But I cannot initialize the array ... with a collection initializer. And I know that this, i.e., is possible string[] array = { "A" , "B" }; which looks the same to me...

当然，我可以制作 Order 的单独对象，将它们放入数组中，然后将其分配给 Orders ，但我不喜欢这个主意。

Of course I could make separate objects of Order, put them in an array and then assign it toOrders , but I don't like the idea.

在这种情况下，如何获得简洁且代码较少的解决方案？

How can I achieve the clean and less-code-solution in this case?

推荐答案

C＃不提供用于对象初始化的JSON样式表示法，因为它是高度静态类型的语言，不使用积极的类型推断。您必须在使用初始化代码之前调用数组构造函数（ new Order [] ）：

C# does not provide JSON style notation for object initialization, because it is strongly statically typed language, that does not use aggressive type inference. You have to call array constructor(new Order[]) before using initializer code:

        Customer custKim = new Customer
        {
            Name = "some name",
            City = "some city",
            Orders = new Order[]{
                new Order { Quantity = 3, Product = productObj1 },
                new Order { Quantity = 4, Product = productObj2 },
                new Order { Quantity = 1, Product = producctObj3 }
            }
        };

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