C / C++ / MFC

<br />
void AFXAPI AfxLoadField(CRecordset& rs, UINT nField,<br />
void* pvField, long* plLength)<br />
{<br />
// Get the field data<br />
CFieldInfo* pInfo = &rs.m_rgFieldInfos[nField - 1];<br />
<br />
// Assumes old field status cleared out<br />
rs.SetFieldStatus(nField - 1, pInfo->m_bStatus);<br />
<br />
// If not NULL, restore the value and the length<br />
if (!rs.IsFieldStatusNull(nField - 1))<br />
{<br />
if (pInfo->m_nDataType == AFX_RFX_BOOL ||<br />
pInfo->m_nDataType == AFX_RFX_BYTE ||<br />
pInfo->m_nDataType == AFX_RFX_INT ||<br />
pInfo->m_nDataType == AFX_RFX_LONG ||<br />
pInfo->m_nDataType == AFX_RFX_SINGLE)<br />
{<br />
// If caching data by value, pass a ref<br />
AfxCopyValueByRef(&pInfo->m_pvDataCache, pvField,<br />
plLength, pInfo->m_nDataType);<br />
}<br />
else<br />
{<br />
// :mad:This Pointer Change<br />
AfxCopyValueByRef(pInfo->m_pvDataCache, pvField,<br />
plLength, pInfo->m_nDataType);<br />
}<br />
}<br />
else<br />
*plLength = SQL_NULL_DATA;<br />
<br />
#ifdef _DEBUG<br />
// Buffer address must not change - ODBC's SQLBindCol depends upon this<br />
if (pInfo->m_nDataType == AFX_RFX_BINARY)<br />
{<br />
// Change pvField to point to the data of the CByteArray<br />
pvField = ((CByteArray*)pvField)->GetData();<br />
}<br />
<br />
if (pInfo->m_pvBindAddress != pvField) // :mad:This make the problem<br />
{<br />
TRACE1("Error: field address (column %u) has changed!\n",<br />
nField);<br />
ASSERT(FALSE); // :mad:Wenn I ignore this ASSERT all is OK<br />
}<br />
#endif // _DEBUG<br />
}

AfxCopyValueByRef(&pInfo->m_pvDataCache, pvField,<br />
plLength, pInfo->m_nDataType);