An attached event is, fundamentally, a XAML language concept used to reference events that are handled on objects that do not, themselves, define events.
附加事件本质上是一个XAML语言概念，用于引用在本身并不定义事件的对象上处理的事件。
An attached event is, fundamentally, a XAML language concept used to reference events that are handled on objects that do not, themselves, define events.
附加事件本质上是一个XAML语言概念，用于引用在本身并不定义事件的对象上处理的事件。
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