Can I force subclasses to override a method without making it abstract?

Question

I have a class with some abstract methods, but I want to be able to edit a subclass of that class in the designer. However, the designer can\'t edit the subclass unless it

Answer 1

Well you could do some really messy code involving #if - i.e. in DEBUG it is virtual (for the designer), but in RELEASE it is abstract. A real pain to maintain, though.

But other than that: basically, no. If you want designer support it can't be abstract, so you are left with "virtual" (presumably with the base method throwing a NotImplementedException).

Of course, your unit tests will check that the methods have been implemented, yes? ;-p

Actually, it would probably be quite easy to test via generics - i.e. have a generic test method of the form:

[Test]
public void TestFoo() {
  ActualTest();
}
[Test]
public void TestBar() {
  ActualTest();
}

static void ActualTest() where T : SomeBaseClass, new() {
  T obj = new T();
  Assert.blah something involving obj
}