[Mono-list] Re: Final method in C# (as the final keyword in Java)

Ympostor ympostor at clix.pt
Tue May 30 10:09:44 EDT 2006

Raja R Harinath escribió:
>> Son oSon = new Son();
>> Son.DontOverrideMe();

Typo here, the correct would be:

>> The result would be "unruly son".
> OK.  That's what the 'new' keyword does.
>> I don't want that, I want that all derived classes of Father return "I
>> am acting as a father" to the console, and I want the compiler to
>> complain if a derived class wants to hide or override the method.
> There are two ways to respond.
>   1. You can't -- since C# has a special modifier 'new' that allows
>      child classes to "escape" the tyranny of parent classes :-)
>   2. Why do you care?  If you're using DontOverrideMe polymorphically
>      through a 'GrandFather' or 'Father' reference, you'll get the right
>      behaviour even with a 'Son' object.

Thanks Hari, that clarifies all a bit more!

Anyway, I have more questions if you don't mind :)

1) How can I call DontOverrideMe by a the Father reference?
2) How can I do the last thing questioned, but with reflection? (I mean, 
instead of oSon.Method, with something like oSon.GetType().GetMethod(...)...
3) How can I avoid declaring a GrandFather class (now I am using it 
because otherwise I am unable to use the sealed keyword in a method).

Thanks again.



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