动态铸造？ [英] dynamic casting?

问题描述

我需要一种方法来对象转换一个类型，是不知道在编译时间

I need a way to cast an object to a type that is not know at compiler time.

是这样的：

object obj;

public (type of obj) Obj
{
    get
    {
        return obj
    }
    set
    {
        obj = (type of obj)value;
    }
}

这是唯一知道的是，obj为值类型。

The only thing that is know is that obj is a value type.

我怀疑，这样的事情是可能的。只是检查，看看是否有人有那么这是一种聪明的办法。

I doubt that something like this would be possible. Just checking to see if someone has a clever way of doing it.

推荐答案

这是不是在C＃3.0中可能的，但如果你可以定义你所有的物体实现共同的接口，你可以转换到这一点。

This is not possible in C# 3.0, but if you could define a common interface that all of your objects implement, you could cast to that.

C＃4.0，我们将获得动态关键字，可以让我们做鸭打字。

In C# 4.0 we will get the dynamic keyword that allows us to do Duck Typing.

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