这个属性包含这个组件希望传播到应用程序级的一个预定义值，这个值表示操作的类型或状态迁移。
This property contains a predefined value of the sort of operation or state transition the component wants to propagate up to the application level.
这种类型的流程可以用状态转换模型(例如uml中可用的)很好地进行表示。
This type of process can be well represented in state transition models (as, for example, available in UML).
状态可以表示任何类型的设计时信息，如当前选择内容中的对象或者单击鼠标按钮时的行为。
State can represent any kind of design-time information, such as objects in the current selection or the behavior when the mouse button is clicked.
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