private void Win_aceptar_pedido_Loaded(object sender, RoutedEventArgs e) { ProveedorBLL ingBLL = new ProveedorBLL(); DataTable dt = ingBLL.Getallprovcbb(); cbb_proveedor.ItemsSource = dt.DefaultView; cbb_proveedor.DisplayMemberPath = "NOMBRE_PROVEEDOR"; cbb_proveedor.SelectedValuePath = "ID_PROVEEDOR"; }