Question

I have method like this:

public static void Raise<TEvent>(TEvent eventToRaise)
    where TEvent : IEvent
{
}

And I call that method like this:

foreach (IEvent evt in entity.UncommittedEvents)
{
    DomainEvents.Raise(evt);
}

where I assume that this is true:

bool areSame = typeof(TEvent) == eventToRaise.GetType();

but it seems that it is not true. Instead it is:

bool areSame = typeof(TEvent) == typeof(IEvent);

Why is that so?

Problem here is that I “lost” type of concrete event here. When I pass that type parameter to next method (without instance of event) I have only type “IEvent”….

Answer 1

Use runtime type definition (dynamic type) otherwise generic parameter type will be IEvent (inferred from parameter type at compile time):

foreach (IEvent evt in entity.UncommittedEvents)
{
    DomainEvents.Raise((dynamic)evt);
}