C#•3y ago•

7 replies

✅ Ensure that subclasses all have to override a specific method?

Is it possible to define a method in a class to say that it must be defined in every subclass?

For example, if I have:

public class A
{
  public virtual void DoSomething() {}
}

public class B : A
{
  public override void DoSomething()
  {
    base.DoSomething();
  }
}

public class C : A
{
}

public class A
{
  public virtual void DoSomething() {}
}

public class B : A
{
  public override void DoSomething()
  {
    base.DoSomething();
  }
}

public class C : A
{
}

I don't want C to be valid. I can't make

DoSomething()

DoSomething()

abstract, as I want to be able to instantiate A.

If this isn't possible in the language, then my approach will be to change

to an abstract base class

Base

Base

with an abstract

DoSomething()

DoSomething()

, and a

DoSomethingInternal()

DoSomethingInternal()

, and then inherit

from

Base

Base

and implement

DoSomething()

DoSomething()

there

C#•3y ago•

7 replies

Hugh

✅ Ensure that subclasses all have to override a specific method?

Is it possible to define a method in a class to say that it must be defined in every subclass?

For example, if I have:

public class A
{
  public virtual void DoSomething() {}
}

public class B : A
{
  public override void DoSomething()
  {
    base.DoSomething();
  }
}

public class C : A
{
}

public class A
{
  public virtual void DoSomething() {}
}

public class B : A
{
  public override void DoSomething()
  {
    base.DoSomething();
  }
}

public class C : A
{
}

I don't want C to be valid. I can't make

DoSomething()

DoSomething()

abstract, as I want to be able to instantiate A.

If this isn't possible in the language, then my approach will be to change

to an abstract base class

Base

Base

with an abstract

DoSomething()

DoSomething()

, and a

DoSomethingInternal()

DoSomethingInternal()

, and then inherit

from

Base

Base

and implement

DoSomething()

DoSomething()

there

✅ Ensure that subclasses all have to override a specific method?

Similar Threads

✅ Ensure that subclasses all have to override a specific method?

Similar Threads

Similar Threads

Similar Threads