泛型集合型式试验 [英] Generic collections type test

问题描述

我想根据给定的集合类型（使用反射）进行某些操作，无论是通用型的。

I'd like to make some operations according to a given collection type (using reflexion), regardless of the generic type.

下面是我的代码：

    void MyFct(Type a_type)
    {
        // Check if it's type of List<>
        if (a_type.Name == "List`1")
        {
            // Do stuff
        }
        // Check if it's type of Dictionary<,>
        else if (a_type.Name == "Dictionary`2")
        {
            // Do stuff
        }
    }

它适用于现在，但它得到明显的，我认为这不是最安全的解决方案。

It works for now, but it gets obvious to me that it's not the most safe solution.

    void MyFct(Type a_type)
    {
        // Check if it's type of List<>
        if (a_type == typeof(List<>))
        {
            // Do stuff
        }
        // Check if it's type of Dictionary<,>
        else if (a_type == typeof(Dictionary<,>))
        {
            // Do stuff
        }
    }

我试过太多，它actualy编译，但没有工作...
我也试图测试的所有接口给出集合类型，但它意味着在集合接口的排他性...

I tried that too, it actualy compiles but doesn't work... I also tried to test all interfaces of the given collection type, but it implies an exclusivity for interfaces in collections...

我希望我自己清楚，我的英语缺乏培训：）

I hope I made myself clear, my english lack of training :)

推荐答案

如果你想看看是否有实现特定泛型类型，那么你就需要做到这一点：

If you want to see if something implements a specific generic type, then you would need to do this:

if(a_type.IsGenericType && a_type.GetGenericTypeDefinition() == typeof(List<>))

的

GetGenericTypeDefinition（）方法将返回未绑定的泛型类型为你测试反对。

The GetGenericTypeDefinition() method will return the unbounded generic type for you test against.

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