Namespace provides classes that are used to implement the run - time and design - time behavior of components and controls System . componentmodel命名空间提供用于实现组件和控件运行时和设计时行为的类。
Namespace contains classes you can use to build custom design - time behavior for data - related components System . componentmodel . design . data命名空间包含的类可用于为数据相关的组件生成自定义设计时行为。
Contains documentation on how to control the application s run - time behavior and get run - time information about the application 包含有关如何控制应用程序运行时行为及获取有关应用程序运行时信息的文档。