在运行时更改属性名称 [英] Change a property name at runtime

问题描述

我可以在运行时在C#中更改类的字段吗?

Can I change the field of a class at runtime in c#?

例如，如果我有以下课程:

for example, if i have the class:

public class ExampleClass{
    public string Name;
}

我可以在运行时使用反射或其他方法将其更改为将Name更改为Name1吗?

can I Change it at runtime, using reflection or other techniques, to change the Name to Name1?

public class ExampleClass{
    public string Name1;
}

推荐答案

否，您不能在运行时更改类型的实际成员

No, you cannot change the actual members of a type at runtime

选项:

• 动态创建一个新类型，看起来很像 ExampleClass ，但是具有不同的成员-大概它们之间有一些映射代码
• 如果意图是用于某种类型的运行时绑定，请考虑使用 ICustomTypeDescriptor 或 IDynamicMetaObjectProvider -这将允许某些框架将视为即使实际上没有，它也具有 Name1 (注意:诸如 DynamicObject 和 ExpandoObject 之类的内容包括 IDynamicMetaObjectProvider ，但您可以通过其他方式做到)
• 使用索引器，即 var val = obj ["Name1"]; 返回有意义的内容

• create a new type on the fly, that looks a lot like ExampleClass, but has different members - and presumably some mapping code between them
• if the intent is for some kind of runtime binding, consider ICustomTypeDescriptor or IDynamicMetaObjectProvider - which will allow some frameworks to treat it as though it had a Name1, even though it actually doesn't (note: things like DynamicObject and ExpandoObject include implementations of IDynamicMetaObjectProvider, but you can do it in other ways)
• use an indexer, i.e. so that var val = obj["Name1"]; returns something meaningful

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