public IndexRecord CreateIndexRecord(int indexRecordOffset, int sizeOfInitialSheetRecords, int offsetDefaultColWidth)
{
IndexRecord result = new IndexRecord();
result.FirstRow = firstrow;
result.LastRowAdd1 = lastrow + 1;
result.PosOfDefColWidthRecord = offsetDefaultColWidth;
// Calculate the size of the records from the end of the BOF
// and up to the RowRecordsAggregate...
// Add the references to the DBCells in the IndexRecord (one for each block)
// Note: The offsets are relative to the Workbook BOF. Assume that this is
// 0 for now.....
int blockCount = RowBlockCount;
// Calculate the size of this IndexRecord
int indexRecSize = IndexRecord.GetRecordSizeForBlockCount(blockCount);
int currentOffset = indexRecordOffset + indexRecSize + sizeOfInitialSheetRecords;
for (int block = 0; block < blockCount; block++)
{
// each row-block has a DBCELL record.
// The offset of each DBCELL record needs to be updated in the INDEX record
// account for row records in this row-block
currentOffset += GetRowBlockSize(block);
// account for cell value records after those
currentOffset += _valuesAgg.GetRowCellBlockSize(
GetStartRowNumberForBlock(block), GetEndRowNumberForBlock(block));
// currentOffset is now the location of the DBCELL record for this row-block
result.AddDbcell(currentOffset);
// Add space required to write the DBCELL record (whose reference was just added).
currentOffset += (8 + (GetRowCountForBlock(block) * 2));
}
return(result);
}
