BOOL CDbView::OnChildNotify(UINT message, WPARAM wParam, LPARAM lParam, LRESULT* pResult)
{
	if(message == WM_NOTIFY)
	{
		NMHDR* phdr = (NMHDR*)lParam;

		// these 3 notifications are only sent by virtual listviews
		switch(phdr->code)
		{
			
		case LVN_GETDISPINFO:
			{
				NMLVDISPINFO* pLvdi;
				
				pLvdi = (NMLVDISPINFO*)lParam;
		GetDispInfo(&pLvdi->item);
}	
void CDbView::GetDispInfo(LVITEM* pItem)
{
	
		if (!m_dSource.IsOpen())
		{
			return;
		}

		//if the recordset is empty, we display a notification label for the user
		if (pItem->iItem == 0 && m_dSource.GetRecordCount() == 0)
		{
			if (pItem->iSubItem == m_firstVisibleColumn )
			{
				RemoveSelection();

				pItem->pszText = (LPTSTR)(LPCTSTR)m_emptyString;
			}

			return;
		}

		// called when the listview needs to display data
		if(pItem->mask & LVIF_TEXT)
		{
			// first, move to the appropriate row in the database
			CString itemText, itemTextTrunc;

			if( m_dSource.PositionCursor(pItem->iItem) &&
				(m_dSource.GetValueByColName(m_columnHeaders.GetViewFieldName((short)pItem->iSubItem), itemText) ))
			{
				//if there is an index column, it is used for indexing the displayed items
				//this is used only for the first column item because there's no reason to duplicate
				//the information

				//Truncate string if necessary.
				if (itemText.GetLength() > pItem->cchTextMax)
				{
					CString itemTextTrunc;
					itemTextTrunc.LoadString(IDS_STRING_TO_LONG);
					int nTrunc = itemTextTrunc.GetLength() + 1;
					itemText = itemText.Left(pItem->cchTextMax - nTrunc) + itemTextTrunc;
				}
	
				lstrcpy(pItem->pszText, (LPCTSTR)itemText );
			}
			else
			{
				m_isRecordSetDirty = TRUE;
			}

			if (m_isRecordSetDirty)
			{
				SetRecordsetDirty();
				m_isRecordSetDirty = FALSE;
			}
}