Is it possible for a class to inherit from a nested class, or to implement a nested interface in C#?
class Outer : Outer.Inner {
class Inner { ... }
...
}
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possible duplicate of Why can't a class extend its own nested class in C#?nawfal– nawfal2013-02-25 11:33:12 +00:00Commented Feb 25, 2013 at 11:33
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2 Answers
In the way that you wrote, no (see this). But if your inner interface is in another class, then you can.
public class SomeClass : SomeOtherClass.ISomeInterface {
public void DoSomething() {}
}
public class SomeOtherClass {
public interface ISomeInterface {
void DoSomething();
}
}
1 Comment
Miguel Angelo
I don't see why this can't be done, but that is the fact!! Anyway... now I am very sad with C#.
As long as the nested type is visible in your scope and not sealed, then yes.
Edit 2: Do not take this post as any commentary on whether or not you should OR shouldn't do this, I am only stating that it is allowed. :)
Edit: You cannot derive from a type nested within itself, but you can implement an interface declared nested in a base type:
public class Base
{
public interface ISomething
{
}
}
public class Derived : Base, Base.ISomething
{
}
