public static void Test()
{
var source = new PropertyChangedEventSource();
var listener = new PropertyChangedEventEventListener();
//Register listener to the source
PropertyChangedEventManager.AddListener(source, listener, nameof(PropertyChangedEventSource.Name));
//change property change and the ReceiveWeakEvent of PropertyChangedEventEventListener method will be called
source.Name = "first name";
//set listener to null so it will be ready for gc
listener = null;
//trigger gc and the listener will be collected.
GCUtils.TriggerGC();
//change property value but the ReceiveWeakEvent of PropertyChangedEventEventListener method will NOT be called
source.Name = "second name";
Console.Read();
}
public static void Test()
{
var eventSource = new CustomEventSource();
var listener = new CustomEventListener();
//register event listener
eventSource.CustomEvent += listener.HandleEvent;
//trigger event and listener.HandleEvent will be executed
eventSource.Raise("First Message from CustomEventSource");
//set listener to null
listener = null;
//trigger gc but the listener object will NOT collected.
GCUtils.TriggerGC();
//trigger event and listener.HandleEvent stil will be executed
eventSource.Raise("Second Message from CustomEventSource");
Console.Read();
}
public static void Test()
{
var eventSource = new CustomEventSource();
var listener = new CustomEventListener();
//add handler listener.HandleEvent to CustomEvent of CustomEventSource
WeakEventManager <CustomEventSource, CustomEventArg> .AddHandler(eventSource, "CustomEvent", listener.HandleEvent);
//trigger event and listener.HandleEvent will be executed
eventSource.Raise("First message");
//set listener to null
listener = null;
//trigger gc and the listener object will be collected.
GCUtils.TriggerGC();
//trigger event and listener.HandleEvent stil will NOT be executed
eventSource.Raise("Second Message");
Console.Read();
}
public static void Test()
{
var eventSource = new CustomEventSource();
var listener = new CustomWeakEventListener();
//add listener for eventSource via CustomizedWeakEventManager
CustomizedWeakEventManager.AddListener(eventSource, listener);
//trigger event and listener.ReceiveWeakEvent will be executed
eventSource.Raise("First message");
//set listener to null
listener = null;
//trigger gc and the listener object will be collected.
GCUtils.TriggerGC();
//trigger event and listener.HandleEvent stil will NOT be executed
eventSource.Raise("Second Message");
Console.Read();
}