Question

I read in a blog ( not remembering now ) that it’s recommended to use property syntax ( add , remove blocks ) when defining many events that just few of them are supposed to be handled in any time . in other conditions using field syntax is fine .

what is the reason for this ?

Answer 1

If by “property syntax” you mean overriding the add/remove i.e.

public event EventHandler MyEvent
{
    add
    {
        ...
    }
    remove
    {
        ...
    }
}

then you would only do that if you wanted to change the behaviour of add/remove for that particular event i.e. what happens when you call +=/-= on your event.

For general use of events, you would pretty much always use the field declaration i.e.

public event EventHandler MyEvent;