Question

I have the following generic class:

public class MessageProcesser<T> where T : Message

Inside the code I have the following attribute:

private readonly BlockingCollection<T> _messages;

When I try to do this I get an error (and as T is a Message it should be possible):

_messages.Add(new Message(MessageType.Stop));

What’s wrong?

Thanks!

Answer 1

You don’t have a collection of messages. Message can’t be T, because T may have been inherited.

try

private readonly BlockingCollection<Message> _messages;