C# 将字符串转换为具有带字符串参数的构造函数的类 [英] C# convert string to class that has a constructor with string parameter

问题描述

我看过有关如何将字符串转换为类类型的示例，但是我无法将相同的逻辑应用于具有构造函数的类，该构造函数本身将字符串作为参数.这是我在其他帖子上看到的.

I have seen examples on how to convert string to class type, but I was unable to apply the same logic to a class that has a constructor, which itself takes a string as a parameter. This is what I have seen on other posts.

Type type = Type.GetType("classNameAsString");
object instance = Activator.CreateInstance(type);

我想做的是将同样的方法应用到这个案例中

What I want to do is to apply the same to this case

public class ExampleClass
{
    public ExampleClass(string strParameter)
    {
    }
}

我通常会将 ExampleClass 实例化为

I would normally instantiate ExampleClass as

var exClassInst = new ExampleClass("stringParam");

我怎样才能实现相同的目标，但首先将ExampleClass"字符串转换为类型，然后实例化它.感谢您的帮助.

How can I achieve the same, but first converting "ExampleClass" string to type and then instantiating it. Thank you for your help.

推荐答案

您仍然可以使用 Activator 但使用带有构造函数参数的 CreateInstance 重载:

You still can use Activator but using CreateInstance overload with the constructor arguments:

Type type = Type.GetType("Namespace.ExampleClass");
object instance = Activator.CreateInstance(type, "string param");

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