[WinForm]项目开发中NPOI使用小计

        private void ExportMergeExcel()

        {

            if (File.Exists(templateXlsPath))

            {

                int i = 4, _recordNo = 1;

                using (FileStream file = new FileStream(templateXlsPath, FileMode.Open, FileAccess.Read))

                {

                    HSSFWorkbook _excel = new HSSFWorkbook(file);

                    ICellStyle _cellStyle = CreateCellStly(_excel);

                    ISheet _sheetBasic = _excel.GetSheet(ExcelReadHelper.sheet_BasicInfo.Replace("$", ""));

                    ISheet _sheetStreatLamp = _excel.GetSheet(ExcelReadHelper.sheet_LampMoreLess.Replace("$", ""));

                    ISheet _sheetBasicEx = _excel.GetSheet(ExcelReadHelper.sheet_BasicExInfo.Replace("$", ""));

                    ISheet _sheetStreatLampEx = _excel.GetSheet(ExcelReadHelper.sheet_LampMoreLessExInfo.Replace("$", ""));



                    ISheet _sheetBasicTeamEx = _excel.GetSheet(ExcelReadHelper.sheet_BasicTeamStatistics.Replace("$", ""));

                    ISheet _sheetBasicLampTypeEx = _excel.GetSheet(ExcelReadHelper.sheet_BasicTypeStatistics.Replace("$", ""));

                    ISheet _sheetStreetLampMLEx = _excel.GetSheet(ExcelReadHelper.sheet_LampMoreLessTeamStatistics.Replace("$", ""));

                    ISheet _sheetStreetLampTeamML = _excel.GetSheet(ExcelReadHelper.sheet_LampMoreLessTypeStatistics.Replace("$", ""));



                    file.Close();



                    FillBasicSheetDb(_sheetBasic, i, _recordNo);

                    _recordNo = 1; i = 4;

                    FillStreetLampDb(_sheetStreatLamp, i, _recordNo);



                    _recordNo = 1; i = 4;

                    FillBasicExSheetDb(_sheetBasicEx, i, _recordNo);



                    _recordNo = 1; i = 4;

                    FillStreetLampExDb(_sheetStreatLampEx, i, _recordNo);



                    i = 1; IRow _rowSum = null; int _lampTotalLampCnt = 0, _colLampCnt = 0, _ncolLampCnt = 0; double _lampTotalLampPw = 0, _colLampPw = 0, _ncolLampPw = 0;

                    FillBasicTeamExSheetDb(_excel, _rowSum, _sheetBasicTeamEx, _cellStyle, i, _lampTotalLampCnt, _colLampCnt, _ncolLampCnt, _lampTotalLampPw, _colLampPw, _ncolLampPw);



                    i = 1; _lampTotalLampCnt = 0; _colLampCnt = 0; _ncolLampCnt = 0; _lampTotalLampPw = 0; _colLampPw = 0; _ncolLampPw = 0;

                    FillbasicLampTypeExSheetDb(_excel, _rowSum, _sheetBasicLampTypeEx, _cellStyle, i, _lampTotalLampCnt, _colLampCnt, _ncolLampCnt, _lampTotalLampPw, _colLampPw, _ncolLampPw);



                    _lampTotalLampCnt = 0; _lampTotalLampPw = 0; i = 1;

                    FillsheetStreetLampMLSheetDb(_excel, _rowSum, _sheetStreetLampMLEx, _cellStyle, i, _lampTotalLampCnt, _lampTotalLampPw);



                    _lampTotalLampCnt = 0; _lampTotalLampPw = 0; i = 1;

                    FillStreetLampTeamMLSheetDb(_excel, _rowSum, _sheetStreetLampTeamML, _cellStyle, i, _lampTotalLampCnt, _lampTotalLampPw);



                    OutPutMergeExcel(_excel);

                }

            }

        }

private void FillBasicTeamExSheetDb(HSSFWorkbook _excel, IRow _rowSum, ISheet _sheetBasicTeamEx, ICellStyle _cellStyle, int i, int _lampTotalLampCnt, int _colLampCnt, int _ncolLampCnt, double _lampTotalLampPw, double _colLampPw, double _ncolLampPw)

        {

            foreach (ExcelStatistics excelBasicEx in basicTeamExList)

            {

                IRow _row = _sheetBasicTeamEx.CreateRow(i);

                ExcelWriteHelper.CreateStatisticsExcelRow(_row, excelBasicEx, "BasicTeam");

                #region 总灯数

                int _lTotalLampCnt = 0;

                int.TryParse(excelBasicEx.LampCount, out _lTotalLampCnt);

                _lampTotalLampCnt += _lTotalLampCnt;

                #endregion

                #region 总计算功率(KW)

                double _lTotalLampPw = 0;

                double.TryParse(excelBasicEx.LampPower, out _lTotalLampPw);

                _lampTotalLampPw += _lTotalLampPw;

                #endregion

                #region 汇总灯数

                int _cLampCount = 0;

                int.TryParse(excelBasicEx.CollectCount, out _cLampCount);

                _colLampCnt += _cLampCount;

                #endregion

                #region 汇总功率(KW)

                double _cLampPw = 0;

                double.TryParse(excelBasicEx.CollectPower, out _cLampPw);

                _colLampPw += _cLampPw;

                #endregion

                #region 非汇总灯数

                int _ncLampCount = 0;

                int.TryParse(excelBasicEx.NotCollectCount, out _ncLampCount);

                _ncolLampCnt += _ncLampCount;

                #endregion

                #region 非汇总功率(KW)

                double _ncLampPw = 0;

                double.TryParse(excelBasicEx.NotCollectPower, out _ncLampPw);

                _ncolLampPw += _ncLampPw;

                #endregion

                i++;

            }

            _rowSum = _sheetBasicTeamEx.CreateRow(i);

            _rowSum.HeightInPoints = 20;



            _rowSum.CreateCell(0).SetCellValue("合计：");

            _rowSum.CreateCell(1).SetCellValue(_lampTotalLampCnt);

            _rowSum.CreateCell(2).SetCellValue(_lampTotalLampPw);

            _rowSum.CreateCell(3).SetCellValue(_colLampCnt);

            _rowSum.CreateCell(4).SetCellValue(_colLampPw);

            _rowSum.CreateCell(5).SetCellValue(_ncolLampCnt);

            _rowSum.CreateCell(6).SetCellValue(_ncolLampPw);

            SetRowStyle(_rowSum, _cellStyle);

        }

2.定义样式

        /// <summary>

        /// 样式创建

        /// eg:

        ///private ICellStyle CreateCellStly(HSSFWorkbook _excel)

        ///{

        ///    IFont _font = _excel.CreateFont();

        ///    _font.FontHeightInPoints = 11;

        ///    _font.FontName = "宋体";

        ///    _font.Boldweight = (short)FontBoldWeight.Bold;

        ///    ICellStyle _cellStyle = _excel.CreateCellStyle();

        ///    //_cellStyle.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.LightGreen.Index;

        ///    //_cellStyle.FillPattern = NPOI.SS.UserModel.FillPattern.SolidForeground;

        ///    _cellStyle.SetFont(_font);

        ///    return _cellStyle;

        ///}

        /// 为行设置样式

        /// </summary>

        /// <param name="row">IRow</param>

        /// <param name="cellStyle">ICellStyle</param>

        public static void SetRowStyle(this IRow row, ICellStyle cellStyle)

        {

            if (row != null && cellStyle != null)

            {

                for (int u = row.FirstCellNum; u < row.LastCellNum; u++)

                {

                    ICell _cell = row.GetCell(u);

                    if (_cell != null)

                        _cell.CellStyle = cellStyle;

                }

            }

        }