public int CreerAssociation(string libelle, string nom, int idMission, int idPays, out string msgerr)
        {
            int nbAjout = 0;

            msgerr = "";
            Mission uneMission = new Mission(idMission);
            Pays    unPays     = new Pays(idPays);



            Association uneAssociation = new Association(libelle, nom, uneMission, unPays);


            try
            {
                nbAjout = AssociationDAO.GetInstance().AjoutAssociation(uneAssociation);
            }
            catch (SqlException err)
            {
                msgerr = "ERREUR requête SQL : " + err.Message;
            }
            catch (Exception err)
            {
                msgerr = "ERREUR GRAVE : " + err.Message;
            }
            return(nbAjout);
        }
 public List <Association> GetAssociations()
 {
     return(AssociationDAO.GetInstance().GetAssociation());
 }