刚学VC+数据库，请大侠帮忙看看。

[snowedforest]

_RecordsetPtr m_pRecordset;
_variant_t RecordsAffected;
m_pRecordset =m_pConnection->Execute("SELECT * FROM StudentName ",&RecordsAffected,adCmdText);
_variant_t vIndex =_variant_t("name");
_variant_t vCount = m_pRecordset->GetCollect(vIndex);//<----XXXX出错
m_pRecordset->Close();