两种不同类的扩展方法 [英] Extension methods for two different classes

问题描述

我遇到一种情况，在C#中，我通过OData API消耗数据.实际上，有两个不同的OData端点(两个不同的模型)，其中一个是另一个的超集.

I have a situation where in C# I consume data via an OData API. Actually, there are two different OData endpoints (two different models), where one is a superset of the other.

我创建了两个不同的C#项目(A和B)，其中包含与两个API交互的代码.该代码是使用插入OData Connected服务扩展自动生成的.结果，项目A和项目B都包含一个类 ODataService ，这是要与之交互的主要类型.根据我需要完整的API还是简化的API，我分别引用项目A或B.

I have created two different C# projects (A and B) which contain code to interact with the two API's. The code is automatically generated using Unchase OData Connected Service extension. As a result, project A and project B both contain a class ODataService, which is the main type to interact with. Depending on whether I need the full API or the reduced API, I reference project A or B correspondingly.

我想在单独的项目C中为 ODataService 类编写扩展方法，这样无论我选择引用项目A(完整API)还是项目，我都可以使用这些扩展方法.B(简化的API).

I would like to write extension methods for the ODataService class in a seperate project C, such that I can use these extension methods no matter if I choose to reference project A (full API) or project B (reduced API).

什么是一个好的方法?

推荐答案

一种可能的解决方案是:

One possible solution would be:

1. 为 ODataService -s创建一个接口(例如: IODataService )
2. 为实现接口的服务创建部分类:
   (例如:公共子类ODataService1:IODataService {...} )
3. 为 IODataService
创建扩展方法

1. Create an interface for ODataService-s (e.g.: IODataService)
2. Create partial classes for your services that implement the interface:
   (e.g.: public partial class ODataService1: IODataService {...})
3. Create the extension methods for the IODataService

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