private void btnCLDeleteCustomer_ButtonClick(object sender, ButtonPressedEventArgs e) { DialogResult dialogResult = MessageBox.Show("Chắc chắn xóa?", "Xóa", MessageBoxButtons.YesNo); if (dialogResult == DialogResult.Yes) { } else if (dialogResult == DialogResult.No) { return; } GridView gridView = grdconCLCustomer.FocusedView as GridView; GridColumn colCode = gvCLCustomer.Columns["CUS_CODE"]; String code = gvCLCustomer.GetRowCellValue(gridView.FocusedRowHandle, colCode).ToString(); // int index = gvCLCustomer.FocusedRowHandle; presenter.removeCustomer(code); }