EventManager Class

Reference

Definition

Namespace:: System.Windows

Assembly:: PresentationCore.dll

Important

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Provides event-related utility methods that register routed events for class owners and add class handlers.

public ref class EventManager abstract sealed

public static class EventManager

type EventManager = class

Public Class EventManager

Inheritance: Object
EventManager

Examples

The following example show how to use this class to register a new routed event as a class member, along with the routed event "wrapper" technique of overriding the add and remove implementations for a CLR event.

public static readonly RoutedEvent ButtonColorChangedEvent = EventManager.RegisterRoutedEvent("ButtonColorChanged",RoutingStrategy.Bubble,typeof(DependencyPropertyChangedEventHandler),typeof(Shirt));

public event RoutedEventHandler ButtonColorChanged  {
    add {AddHandler(ButtonColorChangedEvent,value);}
    remove { RemoveHandler(ButtonColorChangedEvent, value); }
}

Public Shared ReadOnly ButtonColorChangedEvent As RoutedEvent = EventManager.RegisterRoutedEvent("ButtonColorChanged",RoutingStrategy.Bubble,GetType(DependencyPropertyChangedEventHandler),GetType(Shirt))

Public Custom Event ButtonColorChanged As RoutedEventHandler
    AddHandler(ByVal value As RoutedEventHandler)
        MyBase.AddHandler(ButtonColorChangedEvent,value)
    End AddHandler
    RemoveHandler(ByVal value As RoutedEventHandler)
        MyBase.RemoveHandler(ButtonColorChangedEvent, value)
    End RemoveHandler
    RaiseEvent(ByVal sender As Object, ByVal e As RoutedEventArgs)
    End RaiseEvent
End Event

Remarks

This class is most commonly used to register a new routed event, with RegisterRoutedEvent.

The second most common API usage is RegisterClassHandler. You use this method to enable class handling of a routed event on the class, or an attached event. For details, see Marking Routed Events as Handled, and Class Handling.

Methods

GetRoutedEvents()	Returns identifiers for routed events that have been registered to the event system.
GetRoutedEventsForOwner(Type)	Finds all routed event identifiers for events that are registered with the provided owner type.
RegisterClassHandler(Type, RoutedEvent, Delegate, Boolean)	Registers a class handler for a particular routed event, with the option to handle events where event data is already marked handled.
RegisterClassHandler(Type, RoutedEvent, Delegate)	Registers a class handler for a particular routed event.
RegisterRoutedEvent(String, RoutingStrategy, Type, Type)	Registers a new routed event with the Windows Presentation Foundation (WPF) event system.

Applies to

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