Question

I found different syntax version of firing an event in c#, and I cant really figure out what exactly the difference is between:

if (OnMyEvent!= null)
    OnMyEvent(this, new MyEventEventArgs());

and:

OnMyEvent.Invoke(this, new MyEventEventArgs());

especially if I dont have any thread context changes?

Thanks in advance!

Answer 1

Using Reflector or ildasm, you can see that these compile (modulo the null check) into the exact same thing (a call to Invoke()).

As for what’s desirable, you should always check for null and you’ll more often see the invocation syntax over the Invoke() syntax.