创建名称在字符串变量中的类的对象实例 [英] Create object instance of a class having its name in string variable

问题描述

我不知道我要问的东西是否可用，但我只想知道它是否存在以及它是如何工作的.所以这是我的问题:

I don't know the thing I am asking is available or not but I just want to know if it exists and how it works. So here is my question:

我有 2-3 个自己的自定义模型类.例如，客户，员工和产品.现在我在一个字符串中有类名.并基于类名出现在一个字符串中，我必须创建它的对象和返回视图.我怎么能做到这一点?

I have 2-3 custom model class of my own. For example, Customer, Employee and Product. Now I have class name in a string. and based on the class name coming in a string, I have to create its object and return to a VIEW. How could I achieve this?

我知道 IF ELSE 语句的一个选项，但我想尝试一种更好的动态"方式...

I know a option of IF ELSE statement but I want to try a better,"Dynamic" way...

推荐答案

将类名放在字符串中并不足以创建其实例.事实上，您需要包含类名的完整命名空间来创建对象.

Having the class name in string is not enough to be able to create its instance. As a matter of fact you will need full namespace including class name to create an object.

假设您有以下内容:

string className = "MyClass";
string namespaceName = "MyNamespace.MyInternalNamespace";

您可以使用以下任一技术创建该类的实例，即 MyNamespace.MyInternalNamespace.MyClass 类的对象:

Than you you can create an instance of that class, the object of class MyNamespace.MyInternalNamespace.MyClass using either of the following techniques:

var myObj = Activator.CreateInstance(namespaceName, className);

或者这个:

var myObj = Activator.CreateInstance(Type.GetType(namespaceName + "." + className));

希望有帮助，如果没有，请告诉我.

Hope this helps, please let me know if not.

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