In a component framework, invocations are a direct result of either UI events or resolved value-binding expressions.
在组件框架中，UI事件或解析的值绑定表达式直接导致方法调用。
If the object contains dependency properties with expressions (such as a data binding), the current value of the expression is copied but not the expression itself.
如果物件包含具有运算式(例如资料系结)的相依性属性，则会复制运算式的目前值，而不是运算式本身。
应用推荐