Class WeakEventManager
This base class provides common functionality for event managers, in support of the "weak event listener" pattern.
public abstract class WeakEventManager : DispatcherObject, IBaseObject, IDisposableObject, IDisposable- Inheritance
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WeakEventManager
- Implements
- Derived
Constructors
- WeakEventManager()
Create a new instance of WeakEventManager.
Properties
- this[object]
The data associated with the given source. Subclasses chose what to store here; most commonly it is a ListenerList - a list of weak references to listeners.
- ReadLock
Take a read-lock on the table, and return the IDisposable. Queries to the table should occur within a "using (ReadLock) { ... }" clause, except for queries that are already within a write lock.
- WriteLock
Take a write-lock on the table, and return the IDisposable. All modifications to the table should occur within a "using (WriteLock) { ... }" clause.
Methods
- DeliverEvent(object, EventArgs)
Deliver an event to each listener.
- DeliverEventToList(object, EventArgs, ListenerList)
Deliver an event to the listeners on the given list
- GetCurrentManager(Type)
Get the current manager for the given manager type.
- NewListenerList()
Return a new list to hold listeners to the event.
- ProtectedAddHandler(object, Delegate)
Add a handler to the given source for the event.
- ProtectedAddListener(object, IWeakEventListener)
Add a listener to the given source for the event.
- ProtectedRemoveHandler(object, Delegate)
Remove a handler to the given source for the event.
- ProtectedRemoveListener(object, IWeakEventListener)
Remove a listener to the given source for the event.
- Purge(object, object, bool)
Remove dead entries from the data for the given source. Returns true if some entries were actually removed.
- Remove(object)
Discard the data associated with the given source
- ScheduleCleanup()
Schedule a cleanup pass.
- SetCurrentManager(Type, WeakEventManager)
Set the current manager for the given manager type.
- StartListening(object)
Listen to the given source for the event.
- StopListening(object)
Stop listening to the given source for the event.