Question

As you can see from the code below am building up a collection of objects from within a list within a list. Wondering if there is a better way of writing this nasty method.

Cheers in Advance

private List<ListINeed> GetListINeed(Guid clientId)
         {
         var listINeed = new List<objectType>();
             someobject.All(p =>
                                 {
                                     p.subcollection.All(q =>
                                                        {
                                                            listINeed.Add(q.subObject);
                                                            return true;
                                                        });
                                     return true;
                                 });
             return listINeed;
         }

Answer 1

use SelectMany

private List<ListINeed> GetListINeed(Guid clientId)
{
    return someobject.SelectMany(p=> p.subcollection)
                             .Select(p=>p.subObject).ToList();
}