Hello friends,
I am new to C#. I have some fundamental doubt. Please, try to answer
it.
1) Ltes say, IFace is an interface which has proto of two methods.
class A implements IFase.
interface IFace
{
void func1(...) {.....}
void func2(...) {.....}
}
class A : IFace
{
void func1(...) {.....}
void func2(...) {.....}
}
class B : A, IFace
{
....
}
Now the question is, in the defination of class B is it neccesory to
implement all two members of IFace. I dont want to change defination
of func1( ) which is from A to B. Or implementation of only one will
solve the problem ? 3 1913
Advait,
Class B, if it does not define anything else, will implement the
interface IFace (you shouldn't need it in the declaration of B, as a matter
of fact).
If you want to provide an implementation of one of the methods defined
in IFace, then you will need to declare the methods in A as virtual, so that
B can override them.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard. caspershouse.co m
"Advait Mohan Raut" <ad***********@ gmail.comwrote in message
news:11******** **************@ t8g2000prg.goog legroups.com...
Hello friends,
I am new to C#. I have some fundamental doubt. Please, try to answer
it.
1) Ltes say, IFace is an interface which has proto of two methods.
class A implements IFase.
interface IFace
{
void func1(...) {.....}
void func2(...) {.....}
}
class A : IFace
{
void func1(...) {.....}
void func2(...) {.....}
}
class B : A, IFace
{
...
}
Now the question is, in the defination of class B is it neccesory to
implement all two members of IFace. I dont want to change defination
of func1( ) which is from A to B. Or implementation of only one will
solve the problem ?
On Sep 21, 8:24 pm, "Nicholas Paldino [.NET/C# MVP]"
<m...@spam.guar d.caspershouse. comwrote:
Advait,
Class B, if it does not define anything else, will implement the
interface IFace (you shouldn't need it in the declaration of B, as a matter
of fact).
If you want to provide an implementation of one of the methods defined
in IFace, then you will need to declare the methods in A as virtual, so that
B can override them.
--
- Nicholas Paldino [.NET/C# MVP]
- m...@spam.guard .caspershouse.c om
But is it possible that, a method delared in an interface to be
implemented as virtual ?
Advait Mohan Raut <ad***********@ gmail.comwrote:
Than you, Nicholas Paldino for the nice information. Actuly I came to
conclusion the one cannot override selected methods of the interface,
because in the offline help of VS 2005 (i.e. C# Reference) they have
stated that 'override' will work only if the base class proto is
either 'override' or 'abstract' or 'virtual' .
But when you implement it in the base class you can make it virtual or
abstract. If you do that, you can override it in the derived class.
--
Jon Skeet - <sk***@pobox.co m> http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
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