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08.27.2008 at 01:36AM PDT, ID: 23681266
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4.6

Need some help with bad ptr Visual c++

Asked by tsp2002 in Windows MFC Programming

     _RecordsetPtr m_ptrRs;  

            //Open the recordset object Tabelle
 m_ptrRs->Open(_variant_t(bstrQuery),(LPCTSTR)m_strConnection, adOpenDynamic, adLockOptimistic, adCmdUnknown);

_variant_t Holder_KdNr;
Cstring str_KDNR;

//get the data from SQL Server
Holder_KdNr           = m_ptrRs->GetCollect("DebitorenNr");




//----------- Copy _variant_t into CString ----------Kd-Nr.
                  
             if(Holder_KdNr.vt!=VT_NULL)
                  {
                        ******>str_KDNr=(LPCSTR)(_bstr_t)Holder_KdNr.bstrVal;
                        str_KDNr.TrimRight();
                  }
                  else
                  {
                        str_KDNr.Empty();
                  
                  }

My program stops here*****> With bad ptr Message.

How can I find out what is wrong.
I can not see any error when I look at the database.

Please let me know. 500 points&still a beginner in Visual c++
Best regards,
Thomas

            


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Zone: Windows MFC Programming
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Solution Provided By: tsp2002
Participating Experts: 2
Solution Grade: A
 
 
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