private void detach_Fees(Fee entity)
 {
     this.SendPropertyChanging();
     entity.Patron = null;
 }
 private void attach_Fees(Fee entity)
 {
     this.SendPropertyChanging();
     entity.Patron = this;
 }
 partial void UpdateFee(Fee instance);
 partial void DeleteFee(Fee instance);
 partial void InsertFee(Fee instance);