is it possible to mark overridden method as final

Question

In C#, is it possible to mark an overridden virtual method as final so implementers cannot override it? How would I do it?

An example may make it easier to understan

Answer 1

Individual methods can be marked as sealed, which is broadly equivalent to marking a method as final in java. So in your example you would have:

class B : A
{
  override sealed void DoAction()
  {
    // implementation
  }
}