binding time control

基本解释

Allows access to the collection of data-binding expressions on a control at design time.
允许在设计阶段存取控制项上的资料系结运算式的集合。
In fact, I can't recall a single time when I've had complete control over both endpoints in a data binding situation.
事实上，我回想起只有一次，我在数据绑定中完全控制了两个端点。
But first let me spend a minute on the applicability of a design-time binding mechanism between the ContextMenu control and any page elements that will display the menu.
慢着，让我们先来想一下ContexMenu控件和页中任意的显示快捷菜单的元素的绑定机制，这种机制对设计时的支持怎么样？