private void ButtonAide_Click(object sender, RoutedEventArgs e)
        {
            MenuHaut.IsEnabled = true;
            MenuHautAfficheDonnees.IsEnabled = true;
            MenuHautParametre.IsEnabled = false;
            MenuHautAnalyse.IsEnabled = false;
            MenuHautImpression.IsEnabled = false;

            AideView aide = new AideView();
            GridMilieu.Children.Clear();
            GridMilieu.Children.Add(aide);

            aide.CallButtonManueel_Click(sender, e);      
        }
 private void ButtonManuelAide_Click(object sender, RoutedEventArgs e)
 {
     AideView aideManuel = new AideView();
     GridMilieu.Children.Clear();
     GridMilieu.Children.Add(aideManuel);
 }