Visual Studio组件设计者可以访问和修改项目.config文件吗？

Can a component designer access and modify the app.config or web.config file of a project at design time? More specifically, is there some hosting service exposed by VS to do this 'the proper way' ? I know I can locate the .config file myself, open it and have my way with it as I please, but I want this to go through the VS sanctioned way, primarily because of source control integration concerns. access and modify the