C# List GroupBy OrderBy

 List<view_devworkinfo> view_devworkinfos = new List<view_devworkinfo>();
                var query =entities.view_devworkinfo.GroupBy(pet => pet.netNo);
                foreach (var item in query)
                {
                    view_devworkinfos.Add(item.OrderByDescending(b=>b.time).ToList<view_devworkinfo>()[0]); 
                }