[Mono-dev] Re: Constructor implementation obligation via interface?

[Kornél Pál]

Constructors are declared in the class itself. Not in an interface or in 
base classes. Constructors are non-virtual methods. As such you cannot force 
constructor implementation.

Kornél

----- Original Message ----- 
From: "Ympostor" <ympostor at clix.pt>
To: <mono-devel-list at lists.ximian.com>
Sent: Wednesday, May 24, 2006 4:23 PM
Subject: [Mono-dev] Re: Constructor implementation obligation via interface?


> Martin Hinks escribió:
>> You can't force a constructor via an interface...
>>
>> Write an abstract class with the constructor definition that you want,
>> specify that the interface inherits the abstract class
>
> It seems an interface cannot inherit from a class. Example:
>
>     public abstract class ExampleWithEmptyConstructor
>     {
>         public ExampleWithEmptyConstructor()
>         {
>         }
>     }
>
>     public interface IExample : ExampleWithEmptyConstructor
>     {
>
>     }
>
> This returns a compilation error: Error 1 Type 
> 'ExampleWithEmptyConstructor' in interface list is not an interface.
>
> Regards
>
> -- 
>
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