private void Enrigstrer_Click(object sender, RoutedEventArgs e)
        {
            methodes m         = new WpfApplication12.methodes();
            string   motdepass = this.user.getmotdepasse();

            SqlConnection con = new SqlConnection(@"Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\bdd.mdf;Integrated Security=True");

            con.Open();
            SqlDataReader adapter;

            SqlCommand cmd = new SqlCommand("Select * From Utilisateurs Where Pseudo='" + Pseudo2.Text + "'", con);

            adapter = cmd.ExecuteReader();
            if (adapter.Read() && (int)(adapter["id_utilisateur"]) != user.getid_utilis())
            {
                pseu_ext.Visibility = System.Windows.Visibility.Visible;
            }
            else

            {
                if ((Password.Password != "") && (Password2.Password != ""))
                {
                    if (Password.Password == user.getmotdepasse())
                    {
                        MessageBoxResult reslt = MessageBox.Show("Voulez-vous vraiment modifier vos informations", "Confirmation", MessageBoxButton.YesNo);
                        if (reslt == MessageBoxResult.Yes)
                        {
                            motdepass = Password2.Password;
                            user.Modifer_utilisateur(this.user, Nom2.Text, Prenom2.Text, motdepass, Pseudo2.Text);
                            user.modifier_utilis(user, this.user.getid_utilis());

                            con.Close();
                        }
                    }
                    else
                    {
                        incorect.Visibility = Visibility.Visible;
                    }
                }
                else
                {
                    MessageBoxResult reslt = MessageBox.Show("Voulez-vous vraiment modifier vos informations", "Confirmation", MessageBoxButton.YesNo);
                    if (reslt == MessageBoxResult.Yes)
                    {
                        user.Modifer_utilisateur(this.user, Nom2.Text, Prenom2.Text, motdepass, Pseudo2.Text);
                        user.modifier_utilis(user, this.user.getid_utilis());

                        con.Close();
                    }
                }
            }
        }