private Album BuildQuestionByArtistSkills() { Album album = null; List <string>[] answer = null; answer = db.SelectUserSkills(this.User_email, "user_artists_skills", false); List <string> subList = getSubListSkillsByLevel(answer[0]); foreach (string artist in subList) { //string artist = (string)o_artist; this.albumForQuestion = db.GetRandAlbumOfArtist(artist); if (album != null) { return(album); } } return(null); }