private void tblConnection_Click(object sender, EventArgs e)
        {
            frmConnexion frm = new frmConnexion();

            frm.MdiParent = this;
            frm.Icon      = this.Icon;
            frm.Show();
        }
        private void smConnection_Click(object sender, EventArgs e)
        {
            frmConnexion frm = new frmConnexion();

            // Affection de notre Mutateur de frmPrincipal a
            // partir de frmConnexion
            frm.Main_form = this;
            frm.MdiParent = this;
            frm.Icon      = this.Icon;
            frm.Show();
        }