EventManager 类

定义

public ref class EventManager abstract sealed

public static class EventManager

type EventManager = class

Public Class EventManager

继承

Object

EventManager

示例

以下示例演示如何使用此类将新的路由事件注册为类成员，以及替代 CLR 事件的添加和删除实现的路由事件“包装器”技术。

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

注解

此类通常用于向 ..RegisterRoutedEvent

第二个最常见的 API 用法是 RegisterClassHandler。 可以使用此方法在类或附加事件上启用对路由事件的类处理。 有关详细信息，请参阅将 路由事件标记为“已处理”和“类处理”。