C＃public类型的别名？ [英] C# public type alias?

问题描述

我想要做的就是写一些类在C＃中充当包装类的类在另一个名称空间中的新的命名空间。有时候不需要包装类，但我还是想在新的命名空间中一个对应的类。我希望这个类的精确副本。有没有办法通过引用另一个类的定义来定义类的新的命名空间？换句话说，我希望有一个别名。

What I want to do is write some classes in C# in a new namespace that act as wrapper classes for classes in another namespace. Sometimes a wrapper class is not needed but I still want a corresponding class in the new namespace. And I want an exact copy of the class. Is there a way to define the class in the new namespace by referring to the definition of another class? In other words I want an alias.

要澄清我的意思是，如果现有的命名空间被命名为Namespace1和新的命名空间被命名为Namespace2，用code这样的Namespace2：

To clarify what I mean, if the existing namespace is named "Namespace1" and the new namespace is named "Namespace2", using code like this in Namespace2:

using Class1 = Namespace1.Class1;

是行不通的，因为 Namespace2.Class1 也就不存在了。 1级只会别名私来Namespace2而不是公开，以Namespace2。如果我可以使用 Namepsace2.Class1 从命名空间外面，如果仍然参照 Namespace1.Class1 ，然后这将是我想要的。

would not work because Namespace2.Class1 would not exist. Class1 would only be aliased "private" to Namespace2 and not "public" to Namespace2. If I could use Namepsace2.Class1 from outside the namespace, and if that would still refer to Namespace1.Class1, then that would be what I want.

我想有可能是一种方法来达到这个目的的属性或反射可能。如果有一些pre处理器指令或宏，可以复制code，将工作过，但很明显，C＃没有这样的事情。

I figured there might be a way to accomplish this with attributes or reflection maybe. If there were some pre-processor directives or macros that could copy code that would work too, but obviously C# doesn't have anything like that.

推荐答案

这听起来像你需要一个类定义映射到另一个。

It sounds like you need to map one class definition to another.

这可以通过手动工具来完成（通过大量的样板code）或自动如 AutoMapper 。

This can be done manually (through lots of boilerplate code) or automatically through a tool like AutoMapper.

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