Exemple #1
0
        /// <summary>
        /// Downloads music data from the internet and saves the data locally.
        /// </summary>
        public void LoadArtists()
        {
            StatusBarErrorText = string.Empty;
            StatusBarVisible   = Visibility.Collapsed;

            try
            {
                var musicUrl = ConfigurationManager.AppSettings[MusicUriKey];
                if (string.IsNullOrWhiteSpace(musicUrl))
                {
                    throw new Exception(
                              string.Format("Key {0} is missing in AppSettings section in the configuration file.",
                                            MusicUriKey));
                }

                var networkHelper = new NetworkHelper();

                if (!networkHelper.CheckForInternetConnection())
                {
                    throw new Exception(
                              "Internet connection is not available. Check if computer is connected to the internet.");
                }

                var translator = new Translator();
                Artists = translator.Translate(networkHelper.GetJsonData(musicUrl));
                OnPropertyChanged("ArtistCounterText");

                if (Artists != null && Artists.Count > 0)
                {
                    ArtistsSelectedIndex = 0;
                    OnPropertyChanged("ArtistsSelectedIndex");
                }

                StatusBarStatusText = String.Empty;
            }
            catch (Exception e)
            {
                StatusBarVisible    = Visibility.Visible;
                StatusBarStatusText = String.Empty;
                StatusBarErrorText  = string.Format("Error: {0}", e.Message);
                OnPropertyChanged("StatusBarStatusText");
                OnPropertyChanged("StatusBarErrorText");
            }
        }