//Action for edit Presences
        public IActionResult Edit(int?id)
        {
            //Test if id is null
            if (id == null)
            {
                return(NotFound());
            }

            //Test if id exists
            var obj = _presenceService.FindById(id.Value);

            if (obj == null)
            {
                return(NotFound());
            }

            //Open Edit Screen
            List <Employee> employees = _employeeService.FindAll();
            var             viewModel = new PresenceFormViewModel {
                Presence = obj, Employees = employees
            };

            //Return view
            return(View(viewModel));
        }
        //Return to create Presence page
        public IActionResult Create()
        {
            //Load Employees from Database
            var employees = _employeeService.FindAll();
            var viewModel = new PresenceFormViewModel {
                Employees = employees
            };

            return(View(viewModel));
        }