public void AddDisplayedRangeToSumSelection(FileFilterGroup fileFilters, int offset, int range)
{
BuildReportTool.SizePart[] listForSelection = GetListToDisplay(fileFilters);
for (int n = offset; n < offset+range; ++n)
{
if (!InSumSelection(listForSelection[n]))
{
AddToSumSelection(listForSelection[n]);
}
}
}