lam0x86

public class ExchangerProvider
{
    public static IEnumerable<Robofollower.Exchanger> LikesList(int userId)
    {
        using (var context = new DataClassesDataContext())
        {
            return context.Exchanger
                .Where(e => e.UserId != userId)
                .Where(e => e.LikeActive)
                .Where(e => e.Points >= 1)
                .Where
                (e => 
                    context.LikeExchanger_Data
                        .Where(l => l.UserId == userId)
                        .All(l => l.MediaId != e.MediaId)
                )
                .OrderByDescending(e => e.Points)
                .Take(5)
                .ToList();
        }
    }
}