private void but_DeleteStaff_ButtonClick(object sender, DevExpress.XtraEditors.Controls.ButtonPressedEventArgs e) { string Message = string.Empty; if (!isValidateDeleteStaff(out Message)) { MessageBox.Show(Message, "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error); } else { int handle = Convert.ToInt32(gridView_StaffInfo.GetFocusedRowCellValue("StaffCode")); NhanVienBus _nhaVienBUS = new NhanVienBus(); string deleteMessage = string.Empty; if (!_nhaVienBUS.DeleteStaff(handle, out deleteMessage)) { MessageBox.Show(deleteMessage, "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error); } else { MessageBox.Show(deleteMessage, "Thông báo", MessageBoxButtons.OK, MessageBoxIcon.Information); Search(); } } }