What are the good reasons to wish that .NET generics could inherit one of the generic parameter types?

Question

This post is in continuation of this one.

I am trying to understand if I am the only one who misses and needs the ability of a .NET generic type to inherit one of it

Answer 1

The good reason to make it possible to inherit from a type parameter is because of the following situation:

I have would like to have an abstract ViewModel class which inherits from an Entity class and has some additional properties and methods.

public abstract class ViewModel : TEntity, IViewModel 
where TEntity : class, IEntity, new() {
    public void SomeMethod() {

    }
}

Then i could make a specific ViewModel

public class EmployeeViewModel : ViewModel {

}

Nice ! it inherits all the fields of the entity and has the standard properties and methods of the abstract viewmodel ! ..

This sadly cannot be done now.