I had to correct myself for a mistake in previous post:

The unseen rows are cutted from the procedure that set the total number of row in the Excel spreadsheet...

I've confused  Rows number and Record number that of course have different values in case of grouping.

I apologize for that.

I need to scan all records in a report to export some data, I use this code:

CXTPReportRows* pRows = m_wndReport.GetRows();

ASSERT( pRows);

ASSERT( m_nNumRows == pRows->GetCount());

for ( nRow = 1; nRow <= m_nNumRows; nRow++) {

spread.SetRow( nRow);

CXTPReportRow* pRow = pRows->GetAt( nRow - 1);

ASSERT( pRow);   // <<<<<<<<<<<<<< Error, see notes below 

if ( pRow == NULL)

continue;

CXTPReportRecord* pRecord = pRow->GetRecord();

ASSERT( pRecord);

if ( pRecord) {

.... code ....

The problem is that this works as aspected when no gouping is performed, but when there is an active group I got as many assertion as the number of groups and the scan ends at Rec-Group item.

Do You have an idea or a better solution then

if ( pRow == NULL) {

   m_nNumRows++;

   continue;

}

TIA