元组类中的命名比“Item1"、“Item2"更好 [英] Better naming in Tuple classes than "Item1", "Item2"

问题描述

有没有办法使用元组类，但提供其中项目的名称?

Is there a way to use a Tuple class, but supply the names of the items in it?

例如:

public Tuple<int, int, int int> GetOrderRelatedIds()

这将返回 OrderGroupId、OrderTypeId、OrderSubTypeId 和 OrderRequirementId 的 id.

That returns the ids for OrderGroupId, OrderTypeId, OrderSubTypeId and OrderRequirementId.

让我的方法的用户知道哪个是哪个会很好.(调用该方法时，结果分别是result.Item1、result.Item2、result.Item3、result.Item4.不清楚哪个是哪个.)

It would be nice to let the users of my method know which is which. (When you call the method, the results are result.Item1, result.Item2, result.Item3, result.Item4. It is not clear which one is which.)

(我知道我可以创建一个类来保存所有这些 Id，但这些 Id 已经有它们自己的类，并且为这个方法的返回值创建一个类似乎很愚蠢.)

(I know I could just create a class to hold all these Ids, but it these Ids already have their own classes they live in and making a class for this one method's return value seems silly.)

推荐答案

在 C# 7.0 (Visual Studio 2017) 中有一个新的结构来做到这一点:

In C# 7.0 (Visual Studio 2017) there is a new construction to do that:

(string first, string middle, string last) LookupName(long id)

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