Should a virtual method in a abstract base class throw?

My abstract base class implements an interface and a method like so:

public interface IFoo
{
       void Bar();
}

public abstract class Foo : IFoo
{
      public virtual void Bar()
      {
          throw new NotImplementedException();
      }
}

Since the base class has no default implementation of this method and I can't make the method abstract, is it reasonable to let the base implementation throw or should it just return? What is the common approach to this? Thanks!
LVL 1
farooqamAsked:
Who is Participating?

Improve company productivity with a Business Account.Sign Up

x
 
Miguel OzConnect With a Mentor Software EngineerCommented:
Based on your needs, 3 alternatives:
A1) If you are not implementing it in the base class, you should implements IFoo interface in the sub classes not the base class.
A2) If you do need to define a Bar method in the abstract class , then do not implement IFoo interface and all your sub classes will have the option toimplement Bar if required.
A3) Preferred one. Define the Bar method as abstract:
public abstract void Bar();
All your subclasses are forced to implement it.
Check:
http://www.dotnetperls.com/abstract
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.