#import "C:Program Files/Common Files/System/ado/msado15.dll" rename("EOF", "adoEOF") //生成C++类，改变EOF函数的名称 using namespace ADODB; BOOL ADOConnect(CString strDBFile) { _ConnectionPtr pConnection; if(pConnection.CreateInstance(__uuidof(Connection)) != S_OK) { return FALSE; } CString strConnect; strConnect.Format(_T("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s"), strDBFile); if(pConnection->Open(_bstr_t(strConnect), "", "", adModeUnknown) == S_OK) { //连接数据库成功 _RecordsetPtr pRecordset; if(pRecordset.CreateInstance(__uuidof(Recordset)) != S_OK) { pConnection->Close(); return FALSE; } CString strSql; strSql = _T("select * from info"); HRESULT hr = pRecordset->Open(_bstr_t(strSql), _variant_t((IDispatch*)pConnection, TRUE), adOpenUnspecified, adLockUnspecified, adCmdUnknown); if(hr != S_OK) { pConnection->Close(); return FALSE; } _variant_t vt; pRecordset->MoveFirst(); while(!pRecordset->adoEOF) { vt = pRecordset->Fields->GetItem("姓名")->Value; pRecordset->MoveNext(); } pConnection->Close(); return TRUE; } return FALSE; } |