public override OperationObject execute(SmartSoftwareBazaEntities entities)
        {
            OperationObject rez = null;

            if (this.DataSelectOpremaRezervacija != null)
            {
                entities.ObrisiOpremuIzRezervacije(this.DataSelectOpremaRezervacija.id_oprema);
                rez = base.execute(entities);
            }
            else
            {
                entities.ObrisiSveRezervacije();
                rez = new OperationObject()
                {
                    Success = true
                };
            }
            return(rez);
        }