I agree. Partial classes are for supplementing machine-generated code: winforms designer files, generated entity framework classes etc. That is, wherever the I

I agree. Partial classes are for supplementing machine-generated code: winforms designer files, generated entity framework classes etc. That is, wherever the IDE would overwrite any edits you made. I'm currently refactoring a 3 partial class monster usercontrol: 238 lines, 2370 lines, and 4526 lines. Fun.