关于MFC和SQL调用的问题，请大侠帮忙啊 急急急 分都压上

[wmllzs]

void CLookUp::OnBnClickedBRoom()
{
// TODO: 在此添加控件通知处理程序代码
GetDlgItem(IDC_CB_ROOM)->GetWindowTextA(m_Room);
CMyDataBase m_ListDB;
CString m_SQLstr;
m_SQLstr.Format("SELECT * FROM Hire_ClassRoom WHERE Name_ClassR='"+m_Room+"'");
_RecordsetPtr m_BnRecord;
m_BnRecord=m_ListDB.recordset((_bstr_t)m_SQLstr);
int a=0;
while(0==m_BnRecord->adoEOF)
{
m_List.InsertItem(0,"");
m_List.SetItemText(a,0,(char*)(_bstr_t)m_BnRecord->GetCollect("Hire_Time"));
m_List.SetItemText(a,1,(char*)(_bstr_t)m_BnRecord->GetCollect("Name_ClassR"));
m_List.SetItemText(a,2,(char*)(_bstr_t)m_BnRecord->GetCollect("Nuber_Room"));
m_List.SetItemText(a,3,(char*)(_bstr_t)m_BnRecord->GetCollect("Hire_User"));
++a;
m_BnRecord->MoveNext();
}
m_ListDB.endconnect();
}

就在这个按钮函数里出错了，请大侠帮忙 我用的编译器是vs2005 sql用的是2005.报错就像图片所示。

[zyq5945]

加异常捕获看是什么错误

try
{
//你的ADO代码
}
catch (_com_error& e)
{
CString strMsg;
strMsg.Format(_T("错误描述：%s\n错误消息%s", 
		(LPCTSTR)e.Description(),
		(LPCTSTR)e.ErrorMessage());
AfxMessageBox(strMsg);
}