A closely related concept to a property changed event is a property trigger.
与属性更改事件密切相关的一个概念是属性触发器。
When the button state is changed (often by being pushed), the event will be generated.
当按钮状态发生改变时(通常是按钮被按下)，就会生成事件。
However, since the introduction of these simple event handlers much has changed.
然而，相比之前的介绍，现在的事件处理程序有了很大的变化。
This event changed the course of history.
这事件改变了历史的进程。
The action you defined has an event attribute set to "xforms-value-changed."
定义的动作有一个event属性设置为“xforms - value - changed”。
The event changed the course of my life.
这个事件改变了我的人生。
One to be influenced or changed by an action or event.
受影响的人：将被一个行动或事件影响或改变的人或事物。
This provides an event in the client that notifies you that history state has changed.
这么一来就会在用户端中提供一个事件，以通知您记录状态已经发生变更。
This event has changed the course of human history.
这件大事改变了人类历史的进程。
Thee historical event changed him completely.
这一历史事件完全改变了他。
Make some notes about how this person or event changed your life in some way.
做些笔记，记录这个人或这件事是怎样在某一方面改变你的生活的。 ！
Describe an event that changed your life in a positive way.
描述一件让你的生活变得更美好的事情。
Event is raised the check state has not yet changed.
事件时，复选状态尚未更改。
When implementing this interface, raise this event after the current item has been changed.
在实现此接口时，会在更改当前项之后引发此事件。
When implementing this interface, raise this event after the current item has been changed.
在实现此接口时，会在更改当前项之后引发此事件。
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