By default, Visual Studio won't even tell you that you can't change the file until -- after you've made all your changes, of course -- you try to save the file. Only then do you get the bad news with ...

One nifty little feature in the brand-new Visual Studio 2022 17.1 Preview 2 is automatic code cleanup on save.

The Visual Basic "Button" class lets you create a control on your VB projects that perform an action such as auto-save. VB also includes file classes that help you create functions to save files.