public RecentlyPlayMusicViewModel()
        {
            for (int i = 0; i < 235; i++)
            {
                // if ('0' + i != 'Z' && '0' + i != 'z')
                RecentlyPlayMusicCollection.Add(new Model.LocalMusicModel
                {
                    AlbumName  = (char)('中' + i) + "album" + i,
                    ArtistName = (char)('狗' + i) + "Artis" + i,
                    Title      = (char)('牛' + i) + "title",
                    IsLike     = i % 3 == 0,
                    Duration   = TimeSpan.FromMilliseconds(i * 5452),
                    //  MusicQuality=(Global.Enums.MusicQualityLevel)(i%3)
                });
            }

            ClearCommand = new DelegateCommand(ClearCommandImpl);
        }
 private void ClearCommandImpl()
 {
     RecentlyPlayMusicCollection.Clear();
 }