调试时如何删除带有3个图标的框?
Just simply uncheck Tools -> Options -> Debugging -> General -> Enable UI Debugging Tools for XAML -> Show runtime tools in application.
Tools -> Options -> Debugging -> General -> Enable UI Debugging Tools for XAML -> Show runtime tools in application
Just uncheck "Show runtime tools in application"
A quicker alternative can be found in a toggle on the Live Visual Tree pane.
It's moved in VS2022 to Tools -> Debugging here: