public IEnumerable <ComputerComponentModel> GetUserOptions(int UserId)
        {
            ComputerComponentModel        computerComponent  = new ComputerComponentModel();
            List <ComputerComponentModel> computerComponents = computerComponent.GetUserOptions(UserId).ToList();

            foreach (var item in computerComponents)
            {
                yield return(item);
            }
        }
        public IEnumerable <ComputerComponentModel> ListOfComputerComponent()
        {
            ComputerComponentModel        computerComponent  = new ComputerComponentModel();
            List <ComputerComponentModel> computerComponents = computerComponent.GetComputerComponents().ToList();

            foreach (var item in computerComponents)
            {
                yield return(item);
            }
        }