Manage many events easily with EventHandlerList

3 Comments

• Cool!
  
  
  
  You can also save on creating a new EventArgs object each time an event is fired by using the EventArgs.Empty object.
  

• EventArgs.Empty probably should do a thread check and return a single eventargs instance per thread... I wonder how this would affect performance?
  
  
  
  Or sacrifice the per thread check and EventArgs becomes an AppDomain singleton, maybe eases the GC a little, hmmm...
  

• Eric,
  
  
  
  EventArgs.Empty follows the Null Object pattern and is a static readonly immutable object so inherently thread-safe. Guid and String use the same pattern.