public void chargeList(String from, String where, String what)
        {
            listInt.Clear();
            String requete = "SELECT * FROM " + from;

            if (where != "")
            {
                requete = requete + " WHERE " + where;
            }
            try
            {
                //Ouverture connexion
                GestConn.Open();
                //Requete SQL
                MySqlCommand MaCommande = new MySqlCommand(requete, GestConn);
                //Déclaration de Data Reader
                MySqlDataReader ReaderCalcul;
                //Exécution de la requête
                ReaderCalcul = MaCommande.ExecuteReader();
                while (ReaderCalcul.Read())
                {
                    listInt.Add(double.Parse(ReaderCalcul[what].ToString()));
                }
                ReaderCalcul.Close();
                GestConn.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Erreur : " + ex.Message);
            }
        }
        //Compte les éléments, sous certaines conditlions
        public int count(String from, String where)
        {
            int    total   = 0;
            String requete = "SELECT * FROM " + from;

            if (where != "")
            {
                requete = requete + " WHERE " + where;
            }
            try
            {
                //Ouverture connexion
                GestConn.Open();
                //Requete SQL
                MySqlCommand MaCommande = new MySqlCommand(requete, GestConn);
                //Déclaration de Data Reader
                MySqlDataReader ReaderCalcul;
                //Exécution de la requête
                ReaderCalcul = MaCommande.ExecuteReader();
                while (ReaderCalcul.Read())
                {
                    total++;
                }
                ReaderCalcul.Close();
                GestConn.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Erreur : " + ex.Message);
            }
            return(total);
        }