evt | 要处理的事件。 |
根据事件的传播阶段和当前目标,通过执行元素的默认操作或与事件关联的回调来处理事件。
EventDispatcher 可能会多次针对同一事件调用此方法:对于事件传播路径上的每个传播阶段和每个目标(如果该目标具有匹配的回调或覆盖了事件的默认操作),都会调用一次。
注意: 不要使用此方法来拦截所有包含此元素的传播路径的事件。无法保证在传播路径上的传播阶段或目标中是否会调用它,即使该目标没有该事件的回调,也没有可以接收事件的默认操作覆盖。
其他资源:CallbackEventHandler.RegisterCallback,CallbackEventHandler.HandleEventBubbleUp
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