OLEDB删除

void CMyATLOLEDBDlg::OnButtonDel() 
{
	// TODO: Add your control notification handler code here
	
	UpdateData(TRUE);

	POSITION	pos;
	int			iPos;
	CString     strPersonID;
	pos = m_listLinkInfo.GetFirstSelectedItemPosition();
	if (pos == NULL)
	{
		::MessageBox(NULL, "请选择要删除的记录！", "通信录", MB_OK|MB_ICONINFORMATION|MB_TASKMODAL);
		return;
	}



	if(AfxMessageBox("真的要删除该记录吗？", MB_ICONQUESTION | MB_YESNO|MB_DEFBUTTON2) == IDNO)
		return;


	iPos			= m_listLinkInfo.GetNextSelectedItem(pos);
	strPersonID		= m_listLinkInfo.GetItemText(iPos, 5);

	CLinkInfo linkInfo;
	strcpy (linkInfo.m_strFilter, "PersonID = ");
	strcat(linkInfo.m_strFilter, strPersonID);
		HRESULT hr = linkInfo.Open();
	if (FAILED(hr))
	{
		::MessageBox(NULL, "打开数据库联系人表失败！", "数据库操作", MB_OK|MB_ICONEXCLAMATION);		
		return;
	}

	hr = linkInfo.m_session.StartTransaction();	//Make Changes permanent

	linkInfo.MoveFirst();

	linkInfo.Delete();

	hr = linkInfo.m_session.Commit();	//Make Changes permanent
	linkInfo.Close();

	ShowItem("");
	UpdateData(FALSE);	
}