CDynamicAccessor and database row number problem

From:
krawiec83@gmail.com
Newsgroups:
microsoft.public.vc.mfc
Date:
30 May 2007 09:27:21 -0700
Message-ID:
<1180542441.699530.120910@q75g2000hsh.googlegroups.com>
Hello

I'm in need of writing a code of getting data from Access database.
Everything works fine except that I have no idea how to get number of
rows (in while loop it goes just forever).
Snippet looks like that:

                CLSID clsid = {0xdee35070L,0x506b,0x11cf,
                                  {0xb1,0xaa,0x0,0xaa,0x0,0xb8,0xde,
0x95}}; //Microsoft.Jet.OLEDB.4.0
                CDataSource ds;
                CSession session;
                HRESULT hr;
                BOOLEAN err = FALSE;
                CString path = "D:\\temp\\dbase.mdb";

hr=ds.Open(clsid,path,NULL,NULL,DB_MODE_SHARE_EXCLUSIVE);
                if(SUCCEEDED(hr)) ;
                else
                {

MessageBox(::GetActiveWindow(),L"Error",L"Error",MB_ICONEXCLAMATION);
                        err = TRUE;
                }
                hr=session.Open(ds);
                if(SUCCEEDED(hr)) ;
                else
                {

MessageBox(::GetActiveWindow(),L"Error",L"Error",MB_ICONEXCLAMATION);
                        err = TRUE;
                }

                if (err == FALSE)
                {
                        CCommand<CDynamicAccessor> cmd;
                        CString query,n1;
                        int i=0;

                        query.Format(L"SELECT ....");

hr=cmd.Open(session,query,NULL,NULL,DBGUID_DBSQL,true);
                        float *tabflend;
                        tabflend = new float[cmd.GetColumnCount()-1];

                        int j=0;
                        cmd.MoveFirst();
                        while(SUCCEEDED(hr))
                        {
                                float *ikkk,*ikk;
                                //acutPrintf(L"\n%d: ",j+1);
                                for (i=2;i<=cmd.GetColumnCount();i++)
                                {
                                        ikkk=static_cast<float
*>(cmd.GetValue(i)); //all values are float-type
                                        //CString temp;
                                        //temp.Format(L"%f",*ikkk);
                                        //acutPrintf(L" %s ",temp);
                                }
                                j++;
                                if (j > 351) break; //There are 352
rows, but there is a possibility of more
                                hr=cmd.MoveNext(); //even if it is the
last row it just takes another one (actually the same as last one
used)
                        }
                        cmd.Close();
                        session.Close();
                        ds.Close();
                        delete [] tabflend;
                }

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