private void Bsstyle_CurrentChanged(object sender, EventArgs e)
        {
            STYLE v = (STYLE)bsstyle.Current;
            int   x = v.idStyle;

            bscomp.DataSource                  = Modele.CompositeurParStyle(int.Parse(x.ToString()));
            dgvCompStyle.DataSource            = bscomp;
            dgvCompStyle.Columns[0].HeaderText = "NOM";
            dgvCompStyle.Columns[1].HeaderText = "PRENOM";
            dgvCompStyle.Columns[2].HeaderText = "STYLE";
            dgvCompStyle.Columns[3].HeaderText = "Né le";
            dgvCompStyle.Columns[4].HeaderText = "Mort le";
            dgvCompStyle.Columns[5].HeaderText = "Informations";
            tbdebstyle.Text = v.dateDebut.ToString();
            tbfinstyle.Text = v.dateFin.ToString();
        }