private void CreatePlaylistAndAddFilesExecute()
 {
     if (PlaylistInputControl == null && Files != null)
     {
         PlaylistInputControl = new PlaylistInputControl();
         playlistInputMode    = InputMode.Save;
     }
     else
     {
         PlaylistInputControl = null;
     }
 }
        private void CreatePlaylistExecute()
        {
            NewPlaylistName = "New Playlist";

            if (PlaylistInputControl == null)
            {
                PlaylistInputControl = new PlaylistInputControl();
                playlistInputMode    = InputMode.Add;
            }
            else
            {
                PlaylistInputControl = null;
            }
        }
 private void RenamePlaylistExecute(object playlist)
 {
     if (PlaylistInputControl == null)
     {
         PlaylistInputControl = new PlaylistInputControl();
         oldPlaylistName      = playlist.ToString();
         NewPlaylistName      = playlist.ToString();
         playlistInputMode    = InputMode.Rename;
     }
     else
     {
         PlaylistInputControl = null;
     }
 }