/// <summary>
/// private method, reads sheet data
/// </summary>
/// <param name="sheet">Sheet object, whose data to read</param>
/// <returns>True if sheet was read successfully, otherwise False</returns>
private bool ReadWorksheet(XlsWorksheet sheet)
{
m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin);
XlsBiffBOF bof = m_stream.Read() as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.Worksheet)
{
return(false);
}
XlsBiffIndex idx = m_stream.Read() as XlsBiffIndex;
bool isV8 = (m_version >= 0x600);
if (idx != null)
{
idx.IsV8 = isV8;
DataTable dt = new DataTable(sheet.Name);
XlsBiffRecord trec;
XlsBiffDimensions dims = null;
do
{
trec = m_stream.Read();
if (trec.ID == BIFFRECORDTYPE.DIMENSIONS)
{
dims = (XlsBiffDimensions)trec;
break;
}
}while (trec.ID != BIFFRECORDTYPE.ROW);
int maxCol = 256;
if (dims != null)
{
dims.IsV8 = isV8;
maxCol = dims.LastColumn;
sheet.Dimensions = dims;
}
for (int i = 0; i < maxCol; i++)
{
dt.Columns.Add("Column" + (i + 1).ToString(), typeof(string));
}
sheet.Data = dt;
uint maxRow = idx.LastExistingRow;
if (idx.LastExistingRow <= idx.FirstExistingRow)
{
return(true);
}
dt.BeginLoadData();
for (int i = 0; i <= maxRow; i++)
{
dt.Rows.Add(dt.NewRow());
}
uint[] dbCellAddrs = idx.DbCellAddresses;
for (int i = 0; i < dbCellAddrs.Length; i++)
{
XlsBiffDbCell dbCell = (XlsBiffDbCell)m_stream.ReadAt((int)dbCellAddrs[i]);
XlsBiffRow row = null;
int offs = (int)dbCell.RowAddress;
do
{
row = m_stream.ReadAt(offs) as XlsBiffRow;
if (row == null)
{
break;
}
offs += row.Size;
}while (row != null);
while (true)
{
XlsBiffRecord rec = m_stream.ReadAt(offs);
offs += rec.Size;
if (rec is XlsBiffDbCell)
{
break;
}
if (rec is XlsBiffEOF)
{
break;
}
XlsBiffBlankCell cell = rec as XlsBiffBlankCell;
if (cell == null)
{
continue;
}
if (cell.ColumnIndex >= maxCol)
{
continue;
}
if (cell.RowIndex > maxRow)
{
continue;
}
switch (cell.ID)
{
case BIFFRECORDTYPE.INTEGER:
case BIFFRECORDTYPE.INTEGER_OLD:
dt.Rows[cell.RowIndex][cell.ColumnIndex] = ((XlsBiffIntegerCell)cell).Value.ToString();
break;
case BIFFRECORDTYPE.NUMBER:
case BIFFRECORDTYPE.NUMBER_OLD:
dt.Rows[cell.RowIndex][cell.ColumnIndex] = FormatNumber(((XlsBiffNumberCell)cell).Value);
break;
case BIFFRECORDTYPE.LABEL:
case BIFFRECORDTYPE.LABEL_OLD:
case BIFFRECORDTYPE.RSTRING:
dt.Rows[cell.RowIndex][cell.ColumnIndex] = ((XlsBiffLabelCell)cell).Value;
break;
case BIFFRECORDTYPE.LABELSST:
{
string tmp = m_globals.SST.GetString(((XlsBiffLabelSSTCell)cell).SSTIndex);
dt.Rows[cell.RowIndex][cell.ColumnIndex] = tmp;
}
break;
case BIFFRECORDTYPE.RK:
dt.Rows[cell.RowIndex][cell.ColumnIndex] = FormatNumber(((XlsBiffRKCell)cell).Value);
break;
case BIFFRECORDTYPE.MULRK:
for (ushort j = cell.ColumnIndex; j <= ((XlsBiffMulRKCell)cell).LastColumnIndex; j++)
{
dt.Rows[cell.RowIndex][j] = FormatNumber(((XlsBiffMulRKCell)cell).GetValue(j));
}
break;
case BIFFRECORDTYPE.BLANK:
case BIFFRECORDTYPE.BLANK_OLD:
case BIFFRECORDTYPE.MULBLANK:
// Skip blank cells
break;
case BIFFRECORDTYPE.FORMULA:
case BIFFRECORDTYPE.FORMULA_OLD:
((XlsBiffFormulaCell)cell).UseEncoding = m_encoding;
object val = ((XlsBiffFormulaCell)cell).Value;
if (val == null)
{
val = string.Empty;
}
else if (val is FORMULAERROR)
{
val = "#" + ((FORMULAERROR)val).ToString();
}
else if (val is double)
{
val = FormatNumber((double)val);
}
dt.Rows[cell.RowIndex][cell.ColumnIndex] = val.ToString();
break;
default:
break;
}
}
}
dt.EndLoadData();
}
else
{
return(false);
}
return(true);
}
/// <summary>
/// Private method, reads Workbook Globals section
/// </summary>
private void ReadWorkbookGlobals()
{
m_globals = new XlsWorkbookGlobals();
m_stream.Seek(0, SeekOrigin.Begin);
XlsBiffRecord rec = m_stream.Read();
XlsBiffBOF bof = rec as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.WorkbookGlobals)
{
throw new InvalidDataException("Oops! Stream has invalid data");
}
m_version = bof.Version;
m_encoding = Encoding.Unicode;
bool isV8 = (m_version >= 0x600);
bool sst = false;
while ((rec = m_stream.Read()) != null)
{
try
{
switch (rec.ID)
{
case BIFFRECORDTYPE.INTERFACEHDR:
m_globals.InterfaceHdr = (XlsBiffInterfaceHdr)rec;
break;
case BIFFRECORDTYPE.BOUNDSHEET:
XlsBiffBoundSheet sheet = (XlsBiffBoundSheet)rec;
if (sheet.Type != XlsBiffBoundSheet.SheetType.Worksheet)
{
break;
}
sheet.IsV8 = isV8;
sheet.UseEncoding = m_encoding;
m_sheets.Add(new XlsWorksheet(m_globals.Sheets.Count, sheet));
m_globals.Sheets.Add(sheet);
break;
case BIFFRECORDTYPE.MMS:
m_globals.MMS = rec;
break;
case BIFFRECORDTYPE.COUNTRY:
m_globals.Country = rec;
break;
case BIFFRECORDTYPE.CODEPAGE:
m_globals.CodePage = (XlsBiffSimpleValueRecord)rec;
m_encoding = Encoding.GetEncoding(m_globals.CodePage.Value);
break;
case BIFFRECORDTYPE.FONT:
case BIFFRECORDTYPE.FONT_V34:
m_globals.Fonts.Add(rec);
break;
case BIFFRECORDTYPE.FORMAT:
case BIFFRECORDTYPE.FORMAT_V23:
m_globals.Formats.Add(rec);
break;
case BIFFRECORDTYPE.XF:
case BIFFRECORDTYPE.XF_V4:
case BIFFRECORDTYPE.XF_V3:
case BIFFRECORDTYPE.XF_V2:
m_globals.ExtendedFormats.Add(rec);
break;
case BIFFRECORDTYPE.SST:
m_globals.SST = (XlsBiffSST)rec;
sst = true;
break;
case BIFFRECORDTYPE.CONTINUE:
if (!sst)
{
break;
}
XlsBiffContinue contSST = (XlsBiffContinue)rec;
m_globals.SST.Append(contSST);
break;
case BIFFRECORDTYPE.EXTSST:
m_globals.ExtSST = rec;
sst = false;
break;
case BIFFRECORDTYPE.EOF:
if (m_globals.SST != null)
{
m_globals.SST.ReadStrings();
}
return;
default:
continue;
}
}
catch (Exception ex)
{
_log.Error(ex.ToString());
}
}
}
private void readWorkBookGlobals()
{
//Read Header
try
{
m_hdr = XlsHeader.ReadHeader(m_file);
}
catch (ArgumentException ex)
{
fail(ex.Message);
return;
}
XlsRootDirectory dir = new XlsRootDirectory(m_hdr);
XlsDirectoryEntry workbookEntry = dir.FindEntry(WORKBOOK) ?? dir.FindEntry(BOOK);
if (workbookEntry == null)
{
fail(Errors.ErrorStreamWorkbookNotFound); return;
}
if (workbookEntry.EntryType != STGTY.STGTY_STREAM)
{
fail(Errors.ErrorWorkbookIsNotStream); return;
}
m_stream = new XlsBiffStream(m_hdr, workbookEntry.StreamFirstSector, workbookEntry.IsEntryMiniStream, dir, this);
m_globals = new XlsWorkbookGlobals();
m_stream.Seek(0, SeekOrigin.Begin);
XlsBiffRecord rec = m_stream.Read();
XlsBiffBOF bof = rec as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.WorkbookGlobals)
{
fail(Errors.ErrorWorkbookGlobalsInvalidData); return;
}
bool sst = false;
m_version = bof.Version;
m_sheets = new List <XlsWorksheet>();
while (null != (rec = m_stream.Read()))
{
switch (rec.ID)
{
case BIFFRECORDTYPE.INTERFACEHDR:
m_globals.InterfaceHdr = (XlsBiffInterfaceHdr)rec;
break;
case BIFFRECORDTYPE.BOUNDSHEET:
XlsBiffBoundSheet sheet = (XlsBiffBoundSheet)rec;
if (sheet.Type != XlsBiffBoundSheet.SheetType.Worksheet)
{
break;
}
sheet.IsV8 = isV8();
sheet.UseEncoding = m_encoding;
m_sheets.Add(new XlsWorksheet(m_globals.Sheets.Count, sheet));
m_globals.Sheets.Add(sheet);
break;
case BIFFRECORDTYPE.MMS:
m_globals.MMS = rec;
break;
case BIFFRECORDTYPE.COUNTRY:
m_globals.Country = rec;
break;
case BIFFRECORDTYPE.CODEPAGE:
m_globals.CodePage = (XlsBiffSimpleValueRecord)rec;
try
{
m_encoding = Encoding.GetEncoding(m_globals.CodePage.Value);
}
catch (ArgumentException)
{
// Warning - Password protection
// TODO: Attach to ILog
}
break;
case BIFFRECORDTYPE.FONT:
case BIFFRECORDTYPE.FONT_V34:
m_globals.Fonts.Add(rec);
break;
case BIFFRECORDTYPE.FORMAT_V23:
{
var fmt = (XlsBiffFormatString)rec;
fmt.UseEncoding = m_encoding;
m_globals.Formats.Add((ushort)m_globals.Formats.Count, fmt);
}
break;
case BIFFRECORDTYPE.FORMAT:
{
var fmt = (XlsBiffFormatString)rec;
m_globals.Formats.Add(fmt.Index, fmt);
}
break;
case BIFFRECORDTYPE.XF:
case BIFFRECORDTYPE.XF_V4:
case BIFFRECORDTYPE.XF_V3:
case BIFFRECORDTYPE.XF_V2:
m_globals.ExtendedFormats.Add(rec);
break;
case BIFFRECORDTYPE.SST:
m_globals.SST = (XlsBiffSST)rec;
sst = true;
break;
case BIFFRECORDTYPE.CONTINUE:
if (!sst)
{
break;
}
XlsBiffContinue contSST = (XlsBiffContinue)rec;
m_globals.SST.Append(contSST);
break;
case BIFFRECORDTYPE.EXTSST:
m_globals.ExtSST = rec;
sst = false;
break;
case BIFFRECORDTYPE.PROTECT:
case BIFFRECORDTYPE.PASSWORD:
case BIFFRECORDTYPE.PROT4REVPASSWORD:
//IsProtected
break;
case BIFFRECORDTYPE.EOF:
if (m_globals.SST != null)
{
m_globals.SST.ReadStrings();
}
return;
default:
////Console.WriteLine("UnKnown Id:{0}",rec.ID);
continue;
}
}
}
private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx, out XlsBiffRow row)
{
idx = null;
row = null;
m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin);
//
// Read BOF
//
XlsBiffBOF bof = m_stream.Read() as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.Worksheet)
{
return(false);
}
//DumpBiffRecords();
//
// Read Index
//
XlsBiffRecord rec = m_stream.Read();
if (rec == null)
{
return(false);
}
if (rec is XlsBiffIndex)
{
idx = rec as XlsBiffIndex;
}
else if (rec is XlsBiffUncalced)
{
// Sometimes this come before the index...
idx = m_stream.Read() as XlsBiffIndex;
}
//if (null == idx)
//{
// // There is a record before the index! Chech his type and see the MS Biff Documentation
// return false;
//}
if (idx != null)
{
idx.IsV8 = isV8();
}
//
// Read Demension
//
XlsBiffRecord trec;
XlsBiffDimensions dims = null;
do
{
trec = m_stream.Read();
if (trec.ID == BIFFRECORDTYPE.DIMENSIONS)
{
dims = (XlsBiffDimensions)trec;
break;
}
} while (trec != null && trec.ID != BIFFRECORDTYPE.ROW);
//
// Read Row
//
//if we are already on row record then set that as the row, otherwise step forward till we get to a row record
if (trec.ID == BIFFRECORDTYPE.ROW)
{
row = (XlsBiffRow)trec;
}
XlsBiffRow rowRecord = null;
while (rowRecord == null)
{
if (m_stream.Position >= m_stream.Size)
{
break;
}
var thisRec = m_stream.Read();
if (thisRec is XlsBiffEOF)
{
break;
}
rowRecord = thisRec as XlsBiffRow;
}
if (rowRecord != null)
{
////Console.WriteLine("Got row {0}, rec: id={1},rowindex={2}, rowColumnStart={3}, rowColumnEnd={4}", rowRecord.Offset, rowRecord.ID, rowRecord.RowIndex, rowRecord.FirstDefinedColumn, rowRecord.LastDefinedColumn);
}
row = rowRecord;
if (dims != null)
{
dims.IsV8 = isV8();
////LogManager.Log(this).Debug("dims IsV8={0}", dims.IsV8);
m_maxCol = dims.LastColumn - 1;
//handle case where sheet reports last column is 1 but there are actually more
if (m_maxCol <= 0 && rowRecord != null)
{
m_maxCol = rowRecord.LastDefinedColumn;
}
m_maxRow = (int)dims.LastRow;
sheet.Dimensions = dims;
}
else
{
m_maxCol = 256;
m_maxRow = (int)idx.LastExistingRow;
}
if (idx != null && idx.LastExistingRow <= idx.FirstExistingRow)
{
return(false);
}
else if (row == null)
{
return(false);
}
m_depth = 0;
//
// Read Hyper Link
//
bool hasFound = false;
while (true)
{
if (m_stream.Position >= m_stream.Size)
{
break;
}
var thisRecord = m_stream.Read();
if (thisRecord is XlsBiffEOF)
{
break;
}
XlsBiffHyperLink hyperLink = thisRecord as XlsBiffHyperLink;
if (hyperLink != null)
{
hasFound = true;
////Console.WriteLine("Read HyperLink");
//Console.WriteLine("Url:{0},{1}",hyperLink.Url,hyperLink.CellRangeAddress.ToString());
m_globals.AddHyperLink(hyperLink);
}
if (hasFound == true && hyperLink == null)
{
break;
}
}
return(true);
}
private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx)
{
idx = null;
m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin);
XlsBiffBOF bof = m_stream.Read() as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.Worksheet)
{
return(false);
}
XlsBiffRecord rec = m_stream.Read();
if (rec == null)
{
return(false);
}
if (rec is XlsBiffIndex)
{
idx = rec as XlsBiffIndex;
}
else if (rec is XlsBiffUncalced)
{
// Sometimes this come before the index...
idx = m_stream.Read() as XlsBiffIndex;
}
if (null == idx)
{
// There is a record before the index! Chech his type and see the MS Biff Documentation
return(false);
}
idx.IsV8 = isV8();
XlsBiffRecord trec;
XlsBiffDimensions dims = null;
do
{
trec = m_stream.Read();
if (trec.ID == BIFFRECORDTYPE.DIMENSIONS)
{
dims = (XlsBiffDimensions)trec;
break;
}
} while (trec != null && trec.ID != BIFFRECORDTYPE.ROW);
m_maxCol = 256;
if (dims != null)
{
dims.IsV8 = isV8();
m_maxCol = dims.LastColumn - 1;
sheet.Dimensions = dims;
}
m_maxRow = (int)idx.LastExistingRow;
if (idx.LastExistingRow <= idx.FirstExistingRow)
{
return(false);
}
m_depht = 0;
return(true);
}
