Overriding an abstract property with a derived return type in c#

Question

I have four classes. Request, DerivedRequest, Handler, DerivedHandler. The Handler class has a property with the following declaration:

public abstract Request         


        

Answer 1

public class Request{}

public class DerivedRequest : Request{}

public class Handler
  where T : Request
{
  public abstract T Request { get; set; }
}

public class DerivedHandler : Handler
{
  public override DerivedRequest Request { get; set; }
}