//btnDelete private void repositoryItemButtonEdit2_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e) { DialogResult dialogResult = MessageBox.Show("Chắc chắn xóa?", "Xóa", MessageBoxButtons.YesNo); if (dialogResult == DialogResult.Yes) { } else if (dialogResult == DialogResult.No) { return; } GridView gridView = gridProductSize.FocusedView as GridView; preProductSize.deleteProductSize(gridView.GetFocusedRowCellValue("PRODUCT_ID").ToString(), gridView.GetFocusedRowCellValue("SIZE").ToString()); }