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, out XlsBiffRow row) { idx = null; row = null; m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin); // Read BOF var bof = m_stream.Read() as XlsBiffBOF; if (bof == null || bof.Type != BIFFTYPE.Worksheet) { return(false); } // 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 (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.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; } XlsBiffRecord thisRec = m_stream.Read(); if (thisRec is XlsBiffEOF) { break; } rowRecord = thisRec as XlsBiffRow; } row = rowRecord; if (dims != null) { dims.IsV8 = 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 { Debug.Assert(idx != null); 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; } XlsBiffRecord thisRecord = m_stream.Read(); if (thisRecord is XlsBiffEOF) { break; } var hyperLink = thisRecord as XlsBiffHyperLink; if (hyperLink != null) { hasFound = true; m_globals.AddHyperLink(hyperLink); } if (hasFound && hyperLink == null) { break; } } return(true); }