[C#]利用NPOI以模板形式生成EXCEL

在开发中，有时候需要生成的EXCEL样子比较复杂，如果用代码形式去控制EXCEL比较繁琐费时，所以事先做好需要生成EXCEL的模板，再生成的时候往里面填充数据这样子比较简便。

这里利用NPOI（链接：https://npoi.codeplex.com/）第三方东西来实现；

代码如下：

                if (File.Exists(templateXlsPath))

                {

                    int i = 4, j = 4;

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

                    {

                        HSSFWorkbook _excel = new HSSFWorkbook(file);

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

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

                        file.Close();

                        foreach (ExcelBasicInfo excelBasic in basicInfoList)

                        {

                            IRow _row = _sheetBasic.CreateRow(i);

                            _row.CreateCell(0).SetCellValue(excelBasic.Number);

                            _row.CreateCell(1).SetCellValue(excelBasic.TeamName);

                            _row.CreateCell(2).SetCellValue(excelBasic.CtrlCabNumber);

                            _row.CreateCell(3).SetCellValue(excelBasic.CurrentStatus);

                            _row.CreateCell(4).SetCellValue(excelBasic.DevicesUseTime);

                            _row.CreateCell(5).SetCellValue(excelBasic.ConfirmLampCount);

                            _row.CreateCell(6).SetCellValue(excelBasic.CalculateKW);

                            _row.CreateCell(7).SetCellValue(excelBasic.OldDeviceNumber);

                            _row.CreateCell(8).SetCellValue(excelBasic.CtrlCabType);

                            _row.CreateCell(9).SetCellValue(excelBasic.InstallationSites);

                            _row.CreateCell(10).SetCellValue(excelBasic.Section);

                            _row.CreateCell(11).SetCellValue(excelBasic.SuperiorPower);

                            _row.CreateCell(12).SetCellValue(excelBasic.TableName);

                            _row.CreateCell(13).SetCellValue(excelBasic.LampCount);



                            _row.CreateCell(14).SetCellValue(excelBasic.LampTypeA);



                            _row.CreateCell(15).SetCellValue(excelBasic.LamppowerA);

                            _row.CreateCell(16).SetCellValue(excelBasic.LampCountA);

                            _row.CreateCell(17).SetCellValue(excelBasic.RunModeA);



                            _row.CreateCell(18).SetCellValue(excelBasic.LampTypeB);

                            _row.CreateCell(19).SetCellValue(excelBasic.LamppowerB);

                            _row.CreateCell(20).SetCellValue(excelBasic.LampCountB);

                            _row.CreateCell(21).SetCellValue(excelBasic.RunModeB);



                            _row.CreateCell(22).SetCellValue(excelBasic.LampTypeC);

                            _row.CreateCell(23).SetCellValue(excelBasic.LamppowerC);

                            _row.CreateCell(24).SetCellValue(excelBasic.LampCountC);

                            _row.CreateCell(25).SetCellValue(excelBasic.RunModeC);





                            _row.CreateCell(26).SetCellValue(excelBasic.LampTypeD);

                            _row.CreateCell(27).SetCellValue(excelBasic.LamppowerD);

                            _row.CreateCell(28).SetCellValue(excelBasic.LampCountD);

                            _row.CreateCell(29).SetCellValue(excelBasic.RunModeD);



                            _row.CreateCell(30).SetCellValue(excelBasic.Remark);

                            i++;

                        }



                        foreach (ExcelStreetLamp streatLamp in streatLamps)

                        {

                            IRow _row = _sheetStreatLamp.CreateRow(j);

                            _row.CreateCell(0).SetCellValue(streatLamp.Number);

                            _row.CreateCell(1).SetCellValue(streatLamp.TeamName);

                            _row.CreateCell(2).SetCellValue(streatLamp.ProjectName);

                            _row.CreateCell(3).SetCellValue(streatLamp.CtrlCabNumber);

                            _row.CreateCell(4).SetCellValue(streatLamp.ChangeDate);

                            _row.CreateCell(5).SetCellValue(streatLamp.MoreLess);

                            _row.CreateCell(6).SetCellValue(streatLamp.MoreLessTotalCount);



                            _row.CreateCell(7).SetCellValue(streatLamp.LampTypeA);

                            _row.CreateCell(8).SetCellValue(streatLamp.LamppowerA);

                            _row.CreateCell(9).SetCellValue(streatLamp.LampCountA);

                            _row.CreateCell(10).SetCellValue(streatLamp.RunModeA);



                            _row.CreateCell(11).SetCellValue(streatLamp.LampTypeB);

                            _row.CreateCell(12).SetCellValue(streatLamp.LamppowerB);

                            _row.CreateCell(13).SetCellValue(streatLamp.LampCountB);

                            _row.CreateCell(14).SetCellValue(streatLamp.RunModeB);



                            _row.CreateCell(15).SetCellValue(streatLamp.LampTypeC);

                            _row.CreateCell(16).SetCellValue(streatLamp.LamppowerC);

                            _row.CreateCell(17).SetCellValue(streatLamp.LampCountC);

                            _row.CreateCell(18).SetCellValue(streatLamp.RunModeC);



                            _row.CreateCell(19).SetCellValue(streatLamp.LampTypeD);

                            _row.CreateCell(20).SetCellValue(streatLamp.LamppowerD);

                            _row.CreateCell(21).SetCellValue(streatLamp.LampCountD);

                            _row.CreateCell(22).SetCellValue(streatLamp.RunModeD);



                            _row.CreateCell(23).SetCellValue(streatLamp.Remark);



                            j++;

                        }

                        SaveFileDialog _savefileDialog = new SaveFileDialog();

                        _savefileDialog.Filter = " excel files(*.xls)|*.xls|All files(*.*)|*.*";

                        _savefileDialog.RestoreDirectory = true;

                        _savefileDialog.FileName = string.Format("上海路灯每月增减表_{0}", DateTime.Now.ToString("yyyyMMddHHmm"));

                        if (_savefileDialog.ShowDialog() == DialogResult.OK)

                        {

                            using (FileStream f = new FileStream(_savefileDialog.FileName.ToString().Trim(), FileMode.Create, FileAccess.ReadWrite))

                            {

                                _excel.Write(f);

                            }

                            MessageToolV2.ShowInfo("合并EXCEL成功!");

                        }

                    }



                }

代码效果