Example #1
0
        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);
        }
Example #2
0
        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);
        }