private void btnQuitter_Click(object sender, EventArgs e)
 {
     if (DbConnexion.etatConnexion() == ConnectionState.Open)
     {
         DbConnexion.SeDeconnecter();
     }
     this.Close();
 }
 private void frmComptaListeFiches_FormClosed(object sender, FormClosedEventArgs e)
 {
     DbConnexion.SeDeconnecter();
 }
 private void btnQuitter_Click(object sender, EventArgs e)
 {
     DbConnexion.SeDeconnecter();
     this.Close();
 }