How to select top N rows in a Linq GroupBy

Question

hope you can help me out here. I have a list of Bookings where I would like to get the top 2 rows in each group of TourOperators.

here\'s a sample of the data:

Answer 1

Replace First() with Take(2) and use SelectMany():

List<Booking> yetAnotherList = 
                 list.GroupBy(row => row.TourOperator)
                     .SelectMany(g => g.OrderBy(row => row.DepDate).Take(2)) 
                     .ToList();

Update: Forgot the SelectMany the first time. You want to flatten the result (which SelectMany does), otherwise you get a list of IEnumerables.

Answer 2

Try to use var and replace First() with Take(2):

var yetAnotherList = list.GroupBy(row => row.TourOperator)
                  .Select(g => g.OrderBy(row => row.DepDate).Take(2)).ToList();