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; } #region Если в текущем файле MS Biff нет индекса или он не находится в самом начале то основные данные в таблицах не находятся и выводится только минимум. //if (null == idx) //{ // // There is a record before the index! Chech his type and see the MS Biff Documentation // return false; //} #endregion 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; } var 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); }