private void ReadWorksheetGlobals()
{
using (var biffStream = new XlsBiffStream(Stream, (int)DataOffset, Workbook.BiffVersion, null, Workbook.SecretKey, Workbook.Encryption))
{
// Check the expected BOF record was found in the BIFF stream
if (biffStream.BiffVersion == 0 || biffStream.BiffType != BIFFTYPE.Worksheet)
{
return;
}
XlsBiffHeaderFooterString header = null;
XlsBiffHeaderFooterString footer = null;
// Handle when dimensions report less columns than used by cell records.
int maxCellColumn = 0;
int maxRowCount = 0;
Dictionary <int, bool> previousBlocksObservedRows = new Dictionary <int, bool>();
Dictionary <int, bool> observedRows = new Dictionary <int, bool>();
var recordOffset = biffStream.Position;
XlsBiffRecord rec = biffStream.Read();
while (rec != null && !(rec is XlsBiffEof))
{
if (rec is XlsBiffDimensions dims)
{
FieldCount = dims.LastColumn;
RowCount = (int)dims.LastRow;
}
if (rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT || rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT_V2)
{
var defaultRowHeightRecord = (XlsBiffDefaultRowHeight)rec;
DefaultRowHeight = defaultRowHeightRecord.RowHeight;
}
if (rec.Id == BIFFRECORDTYPE.RECORD1904)
{
IsDate1904 = ((XlsBiffSimpleValueRecord)rec).Value == 1;
}
if (rec.Id == BIFFRECORDTYPE.XF_V2 || rec.Id == BIFFRECORDTYPE.XF_V3 || rec.Id == BIFFRECORDTYPE.XF_V4)
{
ExtendedFormats.Add(rec);
}
if (rec.Id == BIFFRECORDTYPE.FORMAT)
{
var fmt = (XlsBiffFormatString)rec;
if (Workbook.BiffVersion >= 5)
{
// fmt.Index exists on BIFF5+ only
Formats.Add(fmt.Index, fmt);
}
else
{
Formats.Add((ushort)Formats.Count, fmt);
}
}
if (rec.Id == BIFFRECORDTYPE.FORMAT_V23)
{
var fmt = (XlsBiffFormatString)rec;
Formats.Add((ushort)Formats.Count, fmt);
}
if (rec.Id == BIFFRECORDTYPE.CODEPAGE)
{
var codePage = (XlsBiffSimpleValueRecord)rec;
Encoding = EncodingHelper.GetEncoding(codePage.Value);
}
if (rec.Id == BIFFRECORDTYPE.HEADER && rec.RecordSize > 0)
{
header = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.FOOTER && rec.RecordSize > 0)
{
footer = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.CODENAME)
{
var codeName = (XlsBiffCodeName)rec;
CodeName = codeName.GetValue(Encoding);
}
if (rec.Id == BIFFRECORDTYPE.ROW)
{
var rowRecord = (XlsBiffRow)rec;
SetMinMaxRowOffset(rowRecord.RowIndex, recordOffset);
maxRowCount = Math.Max(maxRowCount, rowRecord.RowIndex + 1);
}
if (rec.IsCell)
{
var cell = (XlsBiffBlankCell)rec;
SetMinMaxRowOffset(cell.RowIndex, recordOffset);
maxCellColumn = Math.Max(maxCellColumn, cell.ColumnIndex + 1);
maxRowCount = Math.Max(maxRowCount, cell.RowIndex + 1);
}
recordOffset = biffStream.Position;
rec = biffStream.Read();
}
if (header != null || footer != null)
{
HeaderFooter = new HeaderFooter(false, false)
{
OddHeader = header?.GetValue(Encoding),
OddFooter = footer?.GetValue(Encoding),
};
}
if (FieldCount < maxCellColumn)
{
FieldCount = maxCellColumn;
}
if (RowCount < maxRowCount)
{
RowCount = maxRowCount;
}
}
}
private void ReadWorksheetGlobals()
{
var biffStream = new XlsBiffStream(Bytes, (int)DataOffset, Workbook.BiffVersion);
// Check the expected BOF record was found in the BIFF stream
if (biffStream.BiffVersion == 0 || biffStream.BiffType != BIFFTYPE.Worksheet)
{
return;
}
XlsBiffHeaderFooterString header = null;
XlsBiffHeaderFooterString footer = null;
// Handle when dimensions report less columns than used by cell records.
int maxCellColumn = 0;
Dictionary <int, bool> previousBlocksObservedRows = new Dictionary <int, bool>();
Dictionary <int, bool> observedRows = new Dictionary <int, bool>();
XlsBiffRecord rec = biffStream.Read();
while (rec != null && !(rec is XlsBiffEof))
{
if (rec is XlsBiffDimensions dims)
{
FieldCount = dims.LastColumn;
}
if (rec.Id == BIFFRECORDTYPE.RECORD1904)
{
IsDate1904 = ((XlsBiffSimpleValueRecord)rec).Value == 1;
}
if (rec.Id == BIFFRECORDTYPE.XF_V2 || rec.Id == BIFFRECORDTYPE.XF_V3 || rec.Id == BIFFRECORDTYPE.XF_V4)
{
ExtendedFormats.Add(rec);
}
if (rec.Id == BIFFRECORDTYPE.FORMAT)
{
var fmt = (XlsBiffFormatString)rec;
if (Workbook.BiffVersion >= 5)
{
// fmt.Index exists on BIFF5+ only
Formats.Add(fmt.Index, fmt);
}
else
{
Formats.Add((ushort)Formats.Count, fmt);
}
}
if (rec.Id == BIFFRECORDTYPE.FORMAT_V23)
{
var fmt = (XlsBiffFormatString)rec;
Formats.Add((ushort)Formats.Count, fmt);
}
if (rec.Id == BIFFRECORDTYPE.CODEPAGE)
{
var codePage = (XlsBiffSimpleValueRecord)rec;
Encoding = EncodingHelper.GetEncoding(codePage.Value);
}
if (rec.Id == BIFFRECORDTYPE.HEADER && rec.RecordSize > 0)
{
header = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.FOOTER && rec.RecordSize > 0)
{
footer = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.CODENAME)
{
var codeName = (XlsBiffCodeName)rec;
CodeName = codeName.GetValue(Encoding);
}
if (!RowContentInMultipleBlocks && rec is XlsBiffDbCell)
{
foreach (int row in observedRows.Keys)
{
previousBlocksObservedRows[row] = true;
}
observedRows.Clear();
}
if (rec is XlsBiffBlankCell cell)
{
maxCellColumn = Math.Max(maxCellColumn, cell.ColumnIndex + 1);
if (!RowContentInMultipleBlocks)
{
if (previousBlocksObservedRows.ContainsKey(cell.RowIndex))
{
RowContentInMultipleBlocks = true;
previousBlocksObservedRows.Clear();
observedRows.Clear();
}
observedRows[cell.RowIndex] = true;
}
}
rec = biffStream.Read();
}
if (header != null || footer != null)
{
HeaderFooter = new HeaderFooter(false, false)
{
OddHeader = header?.GetValue(Encoding),
OddFooter = footer?.GetValue(Encoding),
};
}
if (FieldCount < maxCellColumn)
{
FieldCount = maxCellColumn;
}
}
private void ReadWorksheetGlobals()
{
using (var biffStream = new XlsBiffStream(Stream, (int)DataOffset, Workbook.BiffVersion, null, Workbook.SecretKey, Workbook.Encryption))
{
// Check the expected BOF record was found in the BIFF stream
if (biffStream.BiffVersion == 0 || biffStream.BiffType != BIFFTYPE.Worksheet)
{
return;
}
XlsBiffHeaderFooterString header = null;
XlsBiffHeaderFooterString footer = null;
int maxCellColumn = 0;
int maxRowCount = 0;
var mergeCells = new List <CellRange>();
var biffFormats = new Dictionary <ushort, XlsBiffFormatString>();
var recordOffset = biffStream.Position;
var rec = biffStream.Read();
while (rec != null && !(rec is XlsBiffEof))
{
if (rec is XlsBiffDimensions dims)
{
FieldCount = dims.LastColumn;
RowCount = (int)dims.LastRow;
}
if (rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT || rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT_V2)
{
var defaultRowHeightRecord = (XlsBiffDefaultRowHeight)rec;
DefaultRowHeight = defaultRowHeightRecord.RowHeight;
}
if (rec.Id == BIFFRECORDTYPE.RECORD1904)
{
IsDate1904 = ((XlsBiffSimpleValueRecord)rec).Value == 1;
}
if (rec.Id == BIFFRECORDTYPE.XF_V2 || rec.Id == BIFFRECORDTYPE.XF_V3 || rec.Id == BIFFRECORDTYPE.XF_V4)
{
ExtendedFormats.Add((XlsBiffXF)rec);
}
if (rec.Id == BIFFRECORDTYPE.MERGECELLS)
{
mergeCells.AddRange(((XlsBiffMergeCells)rec).MergeCells);
}
if (rec.Id == BIFFRECORDTYPE.FORMAT)
{
var fmt = (XlsBiffFormatString)rec;
if (Workbook.BiffVersion >= 5)
{
// fmt.Index exists on BIFF5+ only
biffFormats.Add(fmt.Index, fmt);
}
else
{
biffFormats.Add((ushort)biffFormats.Count, fmt);
}
}
if (rec.Id == BIFFRECORDTYPE.FORMAT_V23)
{
var fmt = (XlsBiffFormatString)rec;
biffFormats.Add((ushort)biffFormats.Count, fmt);
}
if (rec.Id == BIFFRECORDTYPE.CODEPAGE)
{
var codePage = (XlsBiffSimpleValueRecord)rec;
Encoding = EncodingHelper.GetEncoding(codePage.Value);
}
if (rec.Id == BIFFRECORDTYPE.HEADER && rec.RecordSize > 0)
{
header = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.FOOTER && rec.RecordSize > 0)
{
footer = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.CODENAME)
{
var codeName = (XlsBiffCodeName)rec;
CodeName = codeName.GetValue(Encoding);
}
if (rec.Id == BIFFRECORDTYPE.ROW)
{
var rowRecord = (XlsBiffRow)rec;
SetMinMaxRowOffset(rowRecord.RowIndex, recordOffset);
maxRowCount = Math.Max(maxRowCount, rowRecord.RowIndex + 1);
}
if (rec.IsCell)
{
var cell = (XlsBiffBlankCell)rec;
SetMinMaxRowOffset(cell.RowIndex, recordOffset);
maxCellColumn = Math.Max(maxCellColumn, cell.ColumnIndex + 1);
maxRowCount = Math.Max(maxRowCount, cell.RowIndex + 1);
}
recordOffset = biffStream.Position;
rec = biffStream.Read();
}
if (header != null || footer != null)
{
HeaderFooter = new HeaderFooter(false, false)
{
OddHeader = header?.GetValue(Encoding),
OddFooter = footer?.GetValue(Encoding),
};
}
foreach (var biffFormat in biffFormats)
{
var formatString = biffFormat.Value.GetValue(Encoding);
Formats.Add(biffFormat.Key, new NumberFormatString(formatString));
}
if (mergeCells.Count > 0)
{
MergeCells = mergeCells.ToArray();
}
if (FieldCount < maxCellColumn)
{
FieldCount = maxCellColumn;
}
if (RowCount < maxRowCount)
{
RowCount = maxRowCount;
}
}
}
private void ReadWorksheetGlobals()
{
using (var biffStream = new XlsBiffStream(Stream, (int)DataOffset, Workbook.BiffVersion, null, Workbook.SecretKey, Workbook.Encryption))
{
// Check the expected BOF record was found in the BIFF stream
if (biffStream.BiffVersion == 0 || biffStream.BiffType != BIFFTYPE.Worksheet)
{
return;
}
XlsBiffHeaderFooterString header = null;
XlsBiffHeaderFooterString footer = null;
var ixfeOffset = -1;
int maxCellColumn = 0;
int maxRowCount = 0; // number of rows with cell records
int maxRowCountFromRowRecord = 0; // number of rows with row records
var mergeCells = new List <CellRange>();
var biffFormats = new Dictionary <ushort, XlsBiffFormatString>();
var recordOffset = biffStream.Position;
var rec = biffStream.Read();
var columnWidths = new List <Col>();
while (rec != null && !(rec is XlsBiffEof))
{
if (rec is XlsBiffDimensions dims)
{
FieldCount = dims.LastColumn;
RowCount = (int)dims.LastRow;
}
if (rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT || rec.Id == BIFFRECORDTYPE.DEFAULTROWHEIGHT_V2)
{
var defaultRowHeightRecord = (XlsBiffDefaultRowHeight)rec;
DefaultRowHeight = defaultRowHeightRecord.RowHeight;
}
if (rec.Id == BIFFRECORDTYPE.RECORD1904)
{
IsDate1904 = ((XlsBiffSimpleValueRecord)rec).Value == 1;
}
if (rec.Id == BIFFRECORDTYPE.XF_V2 || rec.Id == BIFFRECORDTYPE.XF_V3 || rec.Id == BIFFRECORDTYPE.XF_V4)
{
// NOTE: XF records should only occur in raw BIFF2-4 single worksheet documents without the workbook stream, or globally in the workbook stream.
// It is undefined behavior if multiple worksheets in a workbook declare XF records.
Workbook.AddExtendedFormat(-1, ((XlsBiffXF)rec).Format, true);
}
if (rec.Id == BIFFRECORDTYPE.MERGECELLS)
{
mergeCells.AddRange(((XlsBiffMergeCells)rec).MergeCells);
}
if (rec.Id == BIFFRECORDTYPE.COLINFO)
{
columnWidths.Add(((XlsBiffColInfo)rec).Value);
}
if (rec.Id == BIFFRECORDTYPE.FORMAT)
{
var fmt = (XlsBiffFormatString)rec;
if (Workbook.BiffVersion >= 5)
{
// fmt.Index exists on BIFF5+ only
biffFormats.Add(fmt.Index, fmt);
}
else
{
biffFormats.Add((ushort)biffFormats.Count, fmt);
}
}
if (rec.Id == BIFFRECORDTYPE.FORMAT_V23)
{
var fmt = (XlsBiffFormatString)rec;
biffFormats.Add((ushort)biffFormats.Count, fmt);
}
if (rec.Id == BIFFRECORDTYPE.CODEPAGE)
{
var codePage = (XlsBiffSimpleValueRecord)rec;
Encoding = EncodingHelper.GetEncoding(codePage.Value);
}
if (rec.Id == BIFFRECORDTYPE.HEADER && rec.RecordSize > 0)
{
header = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.FOOTER && rec.RecordSize > 0)
{
footer = (XlsBiffHeaderFooterString)rec;
}
if (rec.Id == BIFFRECORDTYPE.CODENAME)
{
var codeName = (XlsBiffCodeName)rec;
CodeName = codeName.GetValue(Encoding);
}
if (rec.Id == BIFFRECORDTYPE.ROW || rec.Id == BIFFRECORDTYPE.ROW_V2)
{
var rowRecord = (XlsBiffRow)rec;
SetMinMaxRow(rowRecord.RowIndex, rowRecord);
// Count rows by row records without affecting the overlap in OffsetMap
maxRowCountFromRowRecord = Math.Max(maxRowCountFromRowRecord, rowRecord.RowIndex + 1);
}
if (rec.Id == BIFFRECORDTYPE.IXFE)
{
ixfeOffset = recordOffset;
}
if (rec.IsCell)
{
var cell = (XlsBiffBlankCell)rec;
maxCellColumn = Math.Max(maxCellColumn, cell.ColumnIndex + 1);
maxRowCount = Math.Max(maxRowCount, cell.RowIndex + 1);
if (ixfeOffset != -1)
{
SetMinMaxRowOffset(cell.RowIndex, ixfeOffset, maxRowCount - 1);
ixfeOffset = -1;
}
SetMinMaxRowOffset(cell.RowIndex, recordOffset, maxRowCount - 1);
}
recordOffset = biffStream.Position;
rec = biffStream.Read();
// Stop if we find the start out a new substream. Not always that files have the required EOF before a substream BOF.
if (rec is XlsBiffBOF)
{
break;
}
}
if (header != null || footer != null)
{
HeaderFooter = new HeaderFooter(false, false)
{
OddHeader = header?.GetValue(Encoding),
OddFooter = footer?.GetValue(Encoding),
};
}
foreach (var biffFormat in biffFormats)
{
Workbook.AddNumberFormat(biffFormat.Key, biffFormat.Value.GetValue(Encoding));
}
if (mergeCells.Count > 0)
{
MergeCells = mergeCells.ToArray();
}
if (FieldCount < maxCellColumn)
{
FieldCount = maxCellColumn;
}
maxRowCount = Math.Max(maxRowCount, maxRowCountFromRowRecord);
if (RowCount < maxRowCount)
{
RowCount = maxRowCount;
}
if (columnWidths.Count > 0)
{
ColumnWidths = columnWidths.ToArray();
}
}
}
