private void detach_ActionPropertyRbDistricts(ActionPropertyRbDistrict entity)
 {
     this.SendPropertyChanging("ActionPropertyRbDistricts");
     entity.RbDistrict = null;
 }
 private void attach_ActionPropertyRbDistricts(ActionPropertyRbDistrict entity)
 {
     this.SendPropertyChanging("ActionPropertyRbDistricts");
     entity.ActionProperty = this;
 }