public DetailEmployeeViewModel()
 {
     this.EmployeeConcerne        = DAOEmploye.ConctructeurEmploye(LaNavigation.Employee);
     this.ListeFormation          = DAOFormation.ListerFormationPourUnEmployee(EmployeeConcerne);
     this.DetailFormationCommand  = new RelayCommand(DetailFormation);
     this.DetailSessionCommand    = new RelayCommand(DetailSession);
     this.AjouterFormationCommand = new RelayCommand(AjouterEmployeeFormation);
 }
        private void AjouterEmployeeFormation()
        {
            EmployeeFormation ef = new EmployeeFormation
            {
                EmployeeConcerne  = EmployeeConcerne,
                FormationConcerne = AjouterFormationSelectionner
            };

            DAOEmployeeFormation.AjouterEmployeeFormation(ef);
            EmployeeConcerne = DAOEmploye.ConctructeurEmploye(EmployeeConcerne);
        }