public BuildingRepository(string connectionString, IPolyclinicRegionRepository regionRepository)
        {
            if (string.IsNullOrWhiteSpace(connectionString))
            {
                throw new ArgumentException("Argument is null or whitespace", nameof(connectionString));
            }

            this.ConnectionString = connectionString;
            this.RegionRepository = regionRepository;
        }
 public PolyclinicRegionService(IPolyclinicRegionRepository regionRepository)
 {
     this.RegionRepository = regionRepository;
 }