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; }
private DataTable readWholeWorkSheet(XlsWorksheet sheet) { XlsBiffIndex idx; if (!readWorkSheetGlobals(sheet, out idx)) return null; DataTable table = new DataTable(sheet.Name); bool triggerCreateColumns = true; m_dbCellAddrs = idx.DbCellAddresses; for (int index = 0; index < m_dbCellAddrs.Length; index++) { if (m_depht == m_maxRow) break; // init reading data m_cellOffset = findFirstDataCellOffset((int)m_dbCellAddrs[index]); //DataTable columns if (triggerCreateColumns) { if (_isFirstRowAsColumnNames && readWorkSheetRow() || (_isFirstRowAsColumnNames && m_maxRow == 1)) { for (int i = 0; i < m_maxCol; i++) { if (m_cellsValues[i] != null && m_cellsValues[i].ToString().Length > 0) table.Columns.Add(m_cellsValues[i].ToString()); else table.Columns.Add(string.Concat(COLUMN, i)); } } else { for (int i = 0; i < m_maxCol; i++) { table.Columns.Add(); } } triggerCreateColumns = false; table.BeginLoadData(); } while (readWorkSheetRow()) { table.Rows.Add(m_cellsValues); } if (m_depht > 0 && !(_isFirstRowAsColumnNames && m_maxRow == 1)) table.Rows.Add(m_cellsValues); } table.EndLoadData(); return table; }
private DataTable readWholeWorkSheet(XlsWorksheet sheet) { XlsBiffIndex idx; if (!readWorkSheetGlobals(sheet, out idx, out m_currentRowRecord)) return null; DataTable table = new DataTable(sheet.Name); bool triggerCreateColumns = true; if (idx != null) readWholeWorkSheetWithIndex(idx, triggerCreateColumns, table); else readWholeWorkSheetNoIndex(triggerCreateColumns, table); table.EndLoadData(); return table; }
private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx, out XlsBiffRow row) { idx = null; row = 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; //DumpBiffRecords(); 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(); LogManager.Log(this).Debug("INDEX IsV8={0}", idx.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); //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(); LogManager.Log(this).Debug("finding rowRecord offset {0}, rec: {1}", thisRec.Offset, thisRec.ID); if (thisRec is XlsBiffEOF) break; rowRecord = thisRec as XlsBiffRow; } if (rowRecord != null) LogManager.Log(this).Debug("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; return true; }
private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx) { m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin); XlsBiffBOF bof = m_stream.Read() as XlsBiffBOF; idx = null; if (bof == null || bof.Type != BIFFTYPE.Worksheet) return false; idx = m_stream.Read() as XlsBiffIndex; if (null == idx) 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; }
private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx, out XlsBiffRow row) { idx = null; row = 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; //DumpBiffRecords(); 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(); 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); //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; m_maxCol = 256; if (dims != null) { dims.IsV8 = isV8(); m_maxCol = dims.LastColumn - 1; sheet.Dimensions = dims; } m_maxRow = idx == null ? (int)dims.LastRow : (int)idx.LastExistingRow; if (idx != null && idx.LastExistingRow <= idx.FirstExistingRow) { return false; } else if (row == null) { return false; } m_depth = 0; return true; }
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; if (null == idx) return false; 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 != null && trec.ID != BIFFRECORDTYPE.ROW); int maxCol = 256; if (dims != null) { dims.IsV8 = IsV8(); maxCol = dims.LastColumn - 1; sheet.Dimensions = dims; } InitializeColumns(ref dt, maxCol); 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 = dbCell.RowAddress; do { row = m_stream.ReadAt(offs) as XlsBiffRow; if (row == null) break; offs += row.Size; } while (null != row); 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; string _sValue; double _dValue; 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: _dValue = ((XlsBiffNumberCell)cell).Value; if ((_sValue = TryConvertOADate(_dValue, cell.XFormat)) != null) { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _sValue; } else { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _dValue; } 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: _dValue = ((XlsBiffRKCell)cell).Value; if ((_sValue = TryConvertOADate(_dValue, cell.XFormat)) != null) { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _sValue; } else { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _dValue; } break; case BIFFRECORDTYPE.MULRK: XlsBiffMulRKCell _rkCell = (XlsBiffMulRKCell)cell; for (ushort j = cell.ColumnIndex; j <= _rkCell.LastColumnIndex; j++) { dt.Rows[cell.RowIndex][j] = _rkCell.GetValue(j); } break; case BIFFRECORDTYPE.BLANK: case BIFFRECORDTYPE.BLANK_OLD: case BIFFRECORDTYPE.MULBLANK: // Skip blank cells break; case BIFFRECORDTYPE.FORMULA: case BIFFRECORDTYPE.FORMULA_OLD: object _oValue = ((XlsBiffFormulaCell)cell).Value; if (null != _oValue && _oValue is FORMULAERROR) _oValue = null; if (null != _oValue && (_sValue = TryConvertOADate(_oValue, cell.XFormat)) != null) { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _sValue; } else { dt.Rows[cell.RowIndex][cell.ColumnIndex] = _oValue; } break; default: break; } } } dt.EndLoadData(); if (m_PromoteToColumns) { RemapColumnsNames(ref dt, dt.Rows[0].ItemArray); dt.Rows.RemoveAt(0); dt.AcceptChanges(); } return true; }