Tips & Tricks - WinForms Data Grid Custom Footer Checkbox

I don't think I would use this specific example, but I would like to encourage the team to highlight more support examples like this.

I'd say no - much better to have it on the column and group headers...

Visually I prefer to have such options in the header and not in the footer.

Plus, I believe users are more used to see such options in the header and expect summaries in the footer.

At least that's how most of my clients prefer my applications.

Regardless of that, implementing it as a standard feature won't be a bad idea especially if other types of controls can be integrated in the footer such as lookupedits or text edits.

-1 for me. It's not the UI pattern we expect.