问题 I've noticed some toolbar is appearing when I debug WPF applications from VS2015, but I have no idea what it is. It is annoying. What is it? Can I disable it? 回答1: It's XAML debugging tools. The controls are under the Tools - Options menu. Related: Introducing the UI debugging tools for XAML General, Debugging, Options Dialog Box 来源: https://stackoverflow.com/questions/37148078/vs2015-wpf-debugging-black-toolbar