Assignment6.Controllers.Manager.TrackGetAll C# (CSharp) Method

        public IEnumerable<TrackBase> TrackGetAll()
        {
            // Track get all

            return Mapper.Map<IEnumerable<TrackBase>>(ds.Tracks.OrderBy(t => t.Name));
        }

        // GET: Playlist/Edit/5
        public ActionResult Edit(int?id)
        {
            // Attempt to fetch the matching object
            var o = m.PlaylistGetByIdWithDetail(id.GetValueOrDefault());

            if (o == null)
            {
                return(HttpNotFound());
            }
            else
            {
                // Create a form, based on the fetched matching object
                var form = Mapper.Map <PlaylistBase, PlaylistEditTracksForm>(o);

                // For the multi select list, configure the "selected" items
                var selectedValues = o.Tracks.Select(jd => jd.TrackId);

                form.TracksPlaying = o.Tracks.OrderBy(e => e.Name);

                form.TracksList = new MultiSelectList
                                      (items: m.TrackGetAll(),
                                      dataValueField: "TrackId",
                                      dataTextField: "FullName",
                                      selectedValues: selectedValues);

                return(View(form));
            }
        }