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C# Querying With LINQ Querying the BirdWatcher Data Sightings of Endangered Birds

Posted by Nathan Yebgui
Nathan Yebgui
15,732 Points

a much easier way

birds.GroupBy( b => b.ConservationStatus).Select( g => new { Status = g.Key, Sightings = g.Sum( s => s.Sightings.Count()) }); you can add birds.Where(b => b.ConservationStatus != "..." && .. etc) at the beginning to only get the desired statuses.

1 Answer

James Churchill
STAFF
James Churchill
Treehouse Teacher
James Churchill
James Churchill
Treehouse Teacher

Nathan,

Thanks for the feedback! As you noted, there's almost always more than one way to write a query. And often the solution that doesn't use a join will be easier to understand too.

Thanks ~James