public FormCommandesBis() { InitializeComponent(); dgvCommandes.SelectionChanged += DgvCommandes_SelectionChanged; btnRechercheOK.Click += BtnRechercheOK_Click; btnImportXML.Click += (object sender, EventArgs e) => _lstCommandes = DAL.ImporterXml(); btnExportXML.Click += (object sender, EventArgs e) => DAL.ExporterXml(_lstCommandes); }