Group and sort within group?

Short answer: Group and sort within group var groupSort = employees .GroupBy(e => e.Department) .Select(g => new { Dept = g.Key, Emp = g.OrderBy(e => e.Name) }); Follow : Group and sort within group var groupSort = employees .GroupBy(e => e.Department) .Select(g => new { Dept = g.Key, Emp = g.OrderBy(e => e.Name) }); Follow : Real-world example… (ShopNest) A sales… report… joins orders and customers, then GroupBy(c => c.City) to…

Explain a bit more

show revenue per city. Group and sort within group var groupSort = employees .GroupBy(e => e.Department) .Select(g => new { Dept = g.Key, Emp = g.OrderBy(e => e.Name) }); Follow : Group and sort within group var groupSort = employees .GroupBy(e => e.Department) .Select(g => new { Dept = g.Key, Emp = g.OrderBy(e => e.Name) }); Follow : Real-world example… (ShopNest) A sales report joins orders and customers, then GroupBy(c => c.City) to show revenue per city.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.