private void RemoveCityDistrictType(string settings)
        {
            DistrictSettings found = null;
            int i = 0;

            foreach (var dis in DistrictSettings)
            {
                if (dis.Type == settings)
                {
                    found = dis;
                }

                i++;
            }

            if (found == null)
            {
                return;
            }

            _districtColors.RemoveAt(i);

            DistrictSettings.Remove(found);
            //RaisePropertyChanged("DistrictSettings");
        }