+=
subscribes to an event. The delegate or method on the right-hand side of the +=
will be added to an internal list that the event keeps track of, and when the owning class fires that event, all the delegates in the list will be called.
+=
subscribes to an event. The delegate or method on the right-hand side of the +=
will be added to an internal list that the event keeps track of, and when the owning class fires that event, all the delegates in the list will be called.