is there a way to do a C++ style friend class/function etc

[Jeff Lindholm]

Is there a way to allow C++ friend level access in a VB.NET object.

Simple C++ example.............

class Foo
{
friend class Bar;
private int a;
...
};

class Bar
{
private int b;
Bar(Foo f)
{
b = f.a; // accessing private data in Foo
}
...
};

 

[CJ Taylor]

Well, you wont be able to access A because its declared private. A would
have to be declared Friend.

 

[Jeff Lindholm]

That would be fine, except that if A is declared Friend then anyone in the
current assembly would be able to access it. In the C++ example no class
other than Foo & Bar could access the private data.

class Foo
Friend a as integer
...
end class

class Bar
private f as new Foo
public sub New()
f.a = 10
end sub
end class

class OtherClass
private f as new Foo
public sub Subr()
f.a = 10
end sub
end class

Would still work, which is not what I am going for..............

(Also is this a top posting or bottom posting group - responding top since
that was how I was responded to)

 

[Mattias Sjögren]

Jeff,

That would be fine, except that if A is declared Friend then anyone in the
current assembly would be able to access it. In the C++ example no class
other than Foo & Bar could access the private data.

There's no feature like C++ friend in VB.NET. The only way you can
make class Bar directly access private members of class Foo is to make
Bar a nested class inside Foo.

(Also is this a top posting or bottom posting group - responding top since
that was how I was responded to)

It's neither (or both). Do whatever you feel like. In a group as big
as this one people will never agree on one way.



Mattias

 

[CJ Taylor]

Jeff,


There's no feature like C++ friend in VB.NET. The only way you can
make class Bar directly access private members of class Foo is to make
Bar a nested class inside Foo.



It's neither (or both). Do whatever you feel like. In a group as big
as this one people will never agree on one way.

Yes we do...