private void DeletePlaylistExecute(object playlist)
        {
            if (playlist.ToString() == SelectedPlaylist)
            {
                StopExecute();

                if (SelectedPlaylist != Playlists.First())
                {
                    SelectedPlaylist = Playlists[Playlists.IndexOf(SelectedPlaylist) - 1];
                }
                else if (SelectedPlaylist != Playlists.Last())
                {
                    SelectedPlaylist = Playlists[Playlists.IndexOf(SelectedPlaylist) + 1];
                }
                else
                {
                    SelectedPlaylist = null;
                    StopAndClearPlaylist();
                }
            }

            DatabaseInterface.DeletePlaylist(playlist.ToString());
            RefreshPlaylistsList();
            RaisePropertyChanged("PlaybackNextStateIcon");
        }