private void detach_RbExpenseServiceItems_ModifyPersonId(RbExpenseServiceItem entity)
 {
     this.SendPropertyChanging("RbExpenseServiceItems_ModifyPersonId");
     entity.Person_ModifyPersonId = null;
 }
 private void attach_RbExpenseServiceItems_CreatePersonId(RbExpenseServiceItem entity)
 {
     this.SendPropertyChanging("RbExpenseServiceItems_CreatePersonId");
     entity.Person_CreatePersonId = this;
 }