Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
282 views
in Technique[技术] by (71.8m points)

c# - Get Caller derived-class when calling a base-class static method

I was wondering if it's possible (even via reflection et similia) to get the caller derived-class inside of a called base-class static method.

For example, I've a base-class with a static method defined:

public MyBaseClass {
    public static void MyBaseClassStaticMethod() { /** ... **/ }
}

and a derived-from-it class:

public MyDerivedClass : MyBaseClass { }

then I call:

MyDerivedClass.MyBaseClassStaticMethod()

Is it possibile, inside of method MyBaseClassStaticMethod, to know which is the caller derived type?
(i.e. MyDerivedClass)

I just need a string...

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Generics in following way can be used to solve your scenario

public class BaseClass<TDerived> where TDerived : BaseClass<TDerived>
{
    public static void LogCallerType()
    {
        Console.WriteLine(typeof(TDerived).Name);
    }
}

public class FooClass : BaseClass<FooClass> { }

public class BooClass : BaseClass<BooClass> { }

class Program
{
    static void Main(string[] args)
    {
        FooClass.LogCallerType();
        BooClass.LogCallerType();
    }
}

This will in turn output the following

1. FooClass
2. BooClass

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...