public void Save(Settings settings)
        {
            IsolatedStorageSettings isolatedStorageSettings = IsolatedStorageSettings.ApplicationSettings;

            if (isolatedStorageSettings.Contains("IsSundayStartOfWeek"))
            {
                isolatedStorageSettings["IsSundayStartOfWeek"] = settings.IsSundayStartOfWeek;
            }
            else
            {
                isolatedStorageSettings.Add("IsSundayStartOfWeek", settings.IsSundayStartOfWeek);
            }

            if (isolatedStorageSettings.Contains("ExpireAfterDays"))
            {
                isolatedStorageSettings["ExpireAfterDays"] = settings.ExpireAfterDays;
            }
            else
            {
                isolatedStorageSettings.Add("ExpireAfterDays", settings.ExpireAfterDays);
            }

            if (isolatedStorageSettings.Contains("UnitType"))
            {
                isolatedStorageSettings["UnitType"] = (int)settings.UnitType;
            }
            else
            {
                isolatedStorageSettings.Add("UnitType", (int)settings.UnitType);
            }

            isolatedStorageSettings.Save();
        }
        public Settings Get()
        {
            Settings settings = new Settings();

            IsolatedStorageSettings isolatedStorageSettings = IsolatedStorageSettings.ApplicationSettings;

            if (isolatedStorageSettings.Contains("IsSundayStartOfWeek"))
            {
                settings.IsSundayStartOfWeek = (bool)isolatedStorageSettings["IsSundayStartOfWeek"];
            }

            if (isolatedStorageSettings.Contains("ExpireAfterDays"))
            {
                settings.ExpireAfterDays = (int)isolatedStorageSettings["ExpireAfterDays"];
            }

            if (isolatedStorageSettings.Contains("UnitType"))
            {
                settings.UnitType = (UnitType)isolatedStorageSettings["UnitType"];
            }

            return settings;
        }