private void DeleteChassisButton_OnClick(object sender, RoutedEventArgs e) { IList selectedChassis = ChassisDataGrid.SelectedItems; int chassisSize = selectedChassis.Count; for (var i = 0; i < chassisSize; i++) { DataRowView row = (DataRowView)ChassisDataGrid.SelectedItems[i]; string textId = row["Id"].ToString(); int id = Convert.ToInt32(textId); _client.DeleteChassis(id); } ChassisTabItem_OnLoaded(sender, e); }