Only allow generic types that implement attribute

Question

Is it possible to restrict a generic type to a class that implements a particular attribute?

If I have an attribute called MyCustomAttribute... I want to write something like this:

public class SomeRandomClass<T>
    where T : MyCustomAttribute
{
}

but not where T is a derived class of MyCustomAttribute, but a class that implements the attribute.

Thanks

edit:

I mean implemented like this:

[MyCustomAttribute]
public class SomeOtherClass
{
}

What is the difference between deriving from class and implementing it? — Sergey Berezovskiy, Aug 20 '14 at 11:06

Sergey Berezovskiy · Answer 1 · 2014-08-20T11:13:53.047

If you are looking for generic parameter constraint which will require type argument to be marked with some attribute, then its not possible.

Here is list of possible constraints: Constraints on Type Parameters (C# Programming Guide). You can add following six constraints for type argument

1 Answers1