public ActionResult AddPlaylist(int id, AddPlaylist model)
 {
     List<Playlist> playlists = playlistService.GetAllPlaylists().ToList();
     for (int i = 0; i < playlists.Count; i++)
     {
         if (model.IsSelected[i])
         {
             viewclientService.ConnectPlaylist(id, playlists[i].PlaylistID);
         }
     }
     return RedirectToAction("Edit", new { id = id });
 }
 public ActionResult AddPlaylist(int id)
 {
     AddPlaylist model = new AddPlaylist();
     model.Playlists = playlistService.GetAllPlaylists().ToList();
     return View(model);
 }