public string GetLocationString()
        {
            var result = default(string);

            if (Venue != null)
            {
                result = Venue.DisplayName();
            }

            if (Venues != null)
            {
                result = Venues.Aggregate(string.Empty,
                                          (prev, v) => prev +
                                          (prev != string.Empty ? ", " : string.Empty) + v.DisplayName());
            }

            return(result);
        }