How to project an object to a list using Linq?

Question

I always need to delete objects before sending them over the wire.

Background:

Position is the tough rival that LINQ to SQL generated based on my table. It stores maternal data data.

SPosition is a lightweight object that only stores my latitude and length.

Code:

  List<SPosition> spositions = new List<SPosition>(); foreach (var position in positions) // positions = List<Position> { SPosition spos = new SPosition { latitude = position.Latitude, longitude = position.Longitude }; spositions.Add(spos); } return spositions.SerializeToJson<List<SPosition>>(); 

How can I use some LINQ magic to clean it up a bit?

Answer 1

 var spositions = positions.Select( position => new SPosition { latitude = position.Latitude, longitude = position.Longitude }).ToList(); 

Answer 2

 return positions .Select(x => new SPosition { latitude = x.Latitude, longitude = x.Longitude }) .ToList() .SerializeToJson<List<SPosition>>(); 

Answer 3

 positions.ForEach((p) => {spositions.Add({new SPosition { latitude = p.Latitude, longitude = p.Longitude }; }); 

Answer 4

 return (from p in positions select new SPosition { latitude = p.Latitude, longitude = p.Longitude }).ToList().SerializeToJson(); 

Answer 5

First thought:

  return positions.Select(p => new SPosition { latitude = p.Latitude, longitude = p.Longitude }).ToList().SerializeToJson<List<SPosition>>(); 

I did not have the opportunity to check the code, but I think it will work.