Activator.CreateInstance实例的目的是什么? [英] Purpose of Activator.CreateInstance with example?
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问题描述
有人能解释 Activator.CreateInstance()
目的详细?
推荐答案
假如你有一类称为MyFancyObject像这样的低于
Say you have a class called "MyFancyObject" like this one below
class MyFancyObject
{
public int A { get;set;}
}
它可以让你把:
It lets you turn:
String ClassName = "MyFancyObject";
进
MyFancyObject obj;
使用
obj = (MyFancyObject)Activator.CreateInstance("MyAssembly", ClassName))
,然后可以做的东西,如:
and can then do stuff like:
obj.A = 100;
这是它的目的。它也有许多其他重载等提供一个类型,而不是类名的字符串。为什么你将有一个问题一样,是一个不同的故事。这里有一些人谁需要它:
That's it's purpose. It also has many other overloads such as providing a Type instead of the class name in a string. Why you would have a problem like that is a different story. Here's some people who needed it:
- <一个href="http://stackoverflow.com/questions/742321/createinstance-am-i-doing-this-right">Createinstance() - 我这样做正确的 ?
- C#使用Activator.CreateInstance
- <一个href="http://stackoverflow.com/questions/53649/creating-an-object-without-knowing-the-class-name-at-design-time">creating不知道类名在设计时对象
- Createinstance() - Am I doing this right?
- C# Using Activator.CreateInstance
- creating an object without knowing the class name at design time
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