如何使用反射动态实例化类型? [英] How to instantiate a type dynamically using reflection?

问题描述

我需要使用反射动态地建立一个 C# 类型.这是我的场景:我正在编写一个基类，它需要实例化某个对象作为其初始化的一部分.基类不知道它应该实例化什么类型的对象，但派生类会.所以，我想让派生类在 base() 调用中将类型传递给基类.代码如下所示:

I need to instatiate a C# type dynamically, using reflection. Here is my scenario: I am writing a base class, which will need to instantiate a certain object as a part of its initialization. The base class won't know what type of object it is supposed to instantiate, but the derived class will. So, I want to have the derived class pass the type to the base class in a base() call. The code looks something like this:

public abstract class MyBaseClass
{
    protected MyBaseClass(Type myType)
    {
         // Instantiate object of type passed in 
         /* This is the part I'm trying to figure out */
    }
}

public class MyDerivedClass : MyBaseClass
{
    public MyDerivedClass() : base(typeof(Whatever))
    {
    }
}

换句话说，基类将要实例化的对象类型的选择委托给其派生类型.

In other words, the base class is delegating to its derived type the choice of the object type to be instantiated.

有人可以帮忙吗?

推荐答案

Try Activator.CreateInstance(Type)

http://msdn.microsoft.com/en-us/library/wccyzw83.aspx

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