When will C# support inheriting from type parameters

[pmayer995]

To anyone from Microsoft, it'd be very helpful to have generics be
able to inherit from type parameters, i.e.:

public class FieldControl<T: T where T : WebControl

should compile instead of giving error "Cannot derive from 'T' because
it is a type parameter". Allowing this would allow mixin classes,
allow multiple implementation inheritance without the issues usually
raised. Using aggregation instead is very tedious and much harder to
maintain. I think it'd be more useful than LINQ.

Any timeline?

Thanks,
Phil

[Nicholas Paldino [.NET/C# MVP]]

Phil,

Unfortunately, MS's current policy on future features is to not talk
about them. You won't get a response from them committing or not committing
to this.
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

<pm*******@yahoo.comwrote in message
news:11*********************@e65g2000hsc.googlegro ups.com...

To anyone from Microsoft, it'd be very helpful to have generics be
able to inherit from type parameters, i.e.:

public class FieldControl<T: T where T : WebControl

should compile instead of giving error "Cannot derive from 'T' because
it is a type parameter". Allowing this would allow mixin classes,
allow multiple implementation inheritance without the issues usually
raised. Using aggregation instead is very tedious and much harder to
maintain. I think it'd be more useful than LINQ.

Any timeline?

Thanks,
Phil