NPOI动态生成Excel(主表明细表)展示模版方法(个人笔记4-29)

因项目要求导出业务数据要求展示主表和明细表(比如订单表+订单明细表)，我只做过把主表和明细一起导出来，大多数应该都是这样子吧，写一个sql，返回一个数据源…
然后我就在网上搜了下，发现自己有点井底之蛙了哈哈哈，还是有很多人的项目有这个需求的！！！
我这边的最后效果大概就是这样子，由于本人是小白所以一直都是先满足功能，再满足体验…
然后我直接把我的渣渣代码贴出来，大神们别笑

 #region Bus_DeliverySheet_ExportExcel(扩展动态生成excel列表式模版)
    /// 

    /// 导出送货单(Excel)
    /// 
    /// 主键
    ///  扩展Excel模版导出(主从表数据)
    ///  2019年4月28日 09:55:49
    public void Bus_DeliverySheet_ExportExcel(string keyValue)
    {
        //主
        var DeliverySheetData = bus_DeliverySheetIBLL.GetBus_DeliverySheetEntitySql(keyValue);
        //明细
        var DeliverySheetDetail = bus_DeliverySheetIBLL.GetBus_DeliverySheet_DetailList(DeliverySheetData.Bds_Unique);
        List list = DeliverySheetDetail.ToList();
        var xlworkbook = new XLWorkbook();
        //Sheet名称
        var worksheets = xlworkbook.Worksheets.Add("送货单");
        //表格标题
        worksheets.Cell("A2").Value = "送 货 单";
        worksheets.Cell("A2").Style.Font.FontSize = 15;
        worksheets.Range(2, 1, 2, 12).Merge();
        worksheets.Range(2, 1, 2, 12).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        送货主信息
        worksheets.Cell("A5").Value = "送货单:";
        worksheets.Cell("A5").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("B5").Value = DeliverySheetData.Bds_SheetNo;//送货单，合并5个单元格
        worksheets.Cell("B5").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Cell("B5").DataType = 0;
        worksheets.Range(5, 2, 5, 6).Merge();
        worksheets.Range(5, 2, 5, 6).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left; //字段值左对齐
        worksheets.Cell("G5").Value = "送货日期:";
        worksheets.Cell("G5").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("H5").Value = DeliverySheetData.Bds_DeliveryDate;//送货日期，合并5个单元格
        worksheets.Cell("H5").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(5, 8, 5, 12).Merge();  //加长度空格
        worksheets.Range(5, 8, 5, 12).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;

        worksheets.Cell("A6").Value = "货主名称:";
        worksheets.Cell("A6").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("B6").Value = DeliverySheetData.Bds_OwnerUnique;//货主名称，合并5个单元格
        worksheets.Cell("B6").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(6, 2, 6, 6).Merge();
        worksheets.Range(6, 2, 6, 6).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;
        worksheets.Cell("G6").Value = "仓库:";
        worksheets.Cell("G6").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("H6").Value = DeliverySheetData.Bds_WarehouseUnique;//仓库，合并5个单元格
        worksheets.Cell("H6").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(6, 8, 6, 12).Merge();
        worksheets.Range(6, 8, 6, 12).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;

        //A7 - H7合并
        worksheets.Cell("A7").Value = "供应商名:";
        worksheets.Cell("A7").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("B7").Value = DeliverySheetData.Bds_SupplierNo;//供应商名，合并5个单元格
        worksheets.Cell("B7").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(7, 2, 7, 6).Merge();
        worksheets.Range(7, 2, 7, 6).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;
        worksheets.Cell("G7").Value = "单据类型:";
        worksheets.Cell("G7").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("H7").Value = DeliverySheetData.Bds_Type;//单据类型，合并3个单元格
        worksheets.Cell("H7").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(7, 8, 7, 12).Merge();
        worksheets.Range(7, 8, 7, 12).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;

        worksheets.Cell("A8").Value = "备注:";
        worksheets.Cell("A8").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;  //主信息字段右对齐
        worksheets.Cell("B8").Value = DeliverySheetData.Bds_Remark;//备注，合并5个单元格
        worksheets.Cell("B8").Style.Font.Underline = XLFontUnderlineValues.Single; //下划线，单一线
        worksheets.Range(8, 2, 8, 6).Merge();
        worksheets.Range(8, 2, 8, 6).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Left;

        //=======主表信息和明细信息中间隔一行单元格========

        表格表头处理
        worksheets.Cell("A10").Value = "编号";
        worksheets.Cell("B10").Value = "商品编号";
        //worksheets.Range(9, 2, 9, 4).Merge();
        //worksheets.Range(9, 2, 9, 4).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("C10").Value = "商品名称";
        // worksheets.Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;  //全局 列被居中
        worksheets.Cell("D10").Value = "商品型号";
        worksheets.Cell("E10").Value = "小单位";
        worksheets.Cell("F10").Value = "条形码";
        worksheets.Cell("G10").Value = "商品规格";
        worksheets.Cell("H10").Value = "数量";
        //明细列表字段样式
        //worksheets.Style.Fill.BackgroundColor = XLColor.White; //(白色)背景   不指定列头则默认全局生效 , 可当做隐藏网格效果
        //  worksheets.Cell("A9").Style.Fill.BackgroundColor = XLColor.NapierGreen; //(绿)列头背景
        worksheets.Cell("A10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;  //主信息字段居中对齐
        worksheets.Cell("B10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("C10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("D10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("E10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("F10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("G10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        worksheets.Cell("H10").Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
        //{送货单!A4:L4,送货单!B5:F5,送货单!H5:L5,送货单!B6:F6,送货单!H6:L6,送货单!B7:F7,送货单!H7:L7,送货单!B9:D9}
        循环添加表格内容
        int count = 0;
        for (int i = 0; i < list.Count; i++)
        {
            //i+10从上往下数到10个格子开始循环(索引改变，循环须改变)
            count += (int)list[i].Bdsd_Qty; //强制转换int类型，累计存储全部总数量
            worksheets.Cell(i + 11, 1).Value = i + 1;
            worksheets.Cell(i + 11, 1).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 2).Value = "'" + list[i].Bdsd_GoodsNo;   //商品编号
            worksheets.Cell(i + 11, 2).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            //worksheets.Range(i + 10, 2, i + 10, 4).Merge();
            //worksheets.Range(i + 10, 2, i + 10, 4).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 3).Value = "'" + list[i].Bdsd_GoodsName;   //商品名称    //   "'"+ 字段， 为阻止excel导出执行了科学计数法(1.11122E+19)
            worksheets.Cell(i + 11, 3).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 4).Value = "'" + list[i].Bdsd_GoodsModel;  //型号
            worksheets.Cell(i + 11, 4).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 5).Value = list[i].Bdsd_GoodsSmallUnit;    //小单位
            worksheets.Cell(i + 11, 5).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 6).Value = "'" + list[i].Bdsd_GoodsBarCode; //条形码
            worksheets.Cell(i + 11, 6).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 7).Value = "'" + list[i].Bdsd_GoodsSpecification; //规格
            worksheets.Cell(i + 11, 7).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(i + 11, 8).Value = list[i].Bdsd_Qty;//数量
            worksheets.Cell(i + 11, 8).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            //list.Count+10所有数据加上从上往下数10行开始计算,定位到后两列
            worksheets.Cell(list.Count + 11, 7).Value = "合计:";
            worksheets.Cell(list.Count + 11, 7).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(list.Count + 11, 7).Style.Fill.BackgroundColor = XLColor.BallBlue; //背景蓝
            worksheets.Cell(list.Count + 11, 8).Value = count;  //遍历累计全部数量
            worksheets.Cell(list.Count + 11, 8).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Center;
            worksheets.Cell(list.Count + 11, 8).Style.Fill.BackgroundColor = XLColor.BallBlue; //背景蓝


            //这是明细添加列表边框，由于没有完全实现，先注释满足功能
            行1 -8   前9是excel从一行数线   1是索引1开始   -   8是excel每个小格子数量     THIN 正常实线  ，粗线 MEDIUM  ，  超级粗线 THICK  , 双实线 DOUBLE  , 虚线 Hair  
            //操作行代码的ws.Range()四个参数含义：①从excel顶部开始向行数 ②是索引1  ③是所有数据的总数量
            //worksheets.Range(i + 9, 1, i + 9, 8).Style.Border.TopBorder = XLBorderStyleValues.Thin;
            //worksheets.Range(i + 9, 1, i + 9, 8).Style.Border.TopBorderColor = XLColor.Black;

            //列9 - 16   9从上数到列表上部数量线，16是从上数到底部数量线   从上数格子到第9格开始遍历，加上list.count总数
            //worksheets.Range(9, i + 1, list.Count + 9, i + 1).Style.Border.LeftBorder = XLBorderStyleValues.Thin;
            //worksheets.Range(9, i + 1, list.Count + 9, i + 1).Style.Border.LeftBorderColor = XLColor.Black;
        }

        var rngTable = worksheets.Range("A1:L1");  //长度
        var rngHeaders = rngTable.Range("A1:L1");
        worksheets.Row(1).Height = 20;
        rngHeaders.FirstCell().Style
         .Font.SetBold()
         .Alignment.SetHorizontal(XLAlignmentHorizontalValues.Center);
        rngHeaders.FirstRow().Merge();
        worksheets.Columns().AdjustToContents();
        var col1 = worksheets.Column("D");
        col1.Width = 15;
        MemoryStream ms = new MemoryStream();
        xlworkbook.SaveAs(ms);
        ms.Flush();
        ms.Position = 0;

        //隐藏网格属性(无效)，如不需要网格，可全局设置背景为白色，效果一样
        //HSSFWorkbook workbook = new HSSFWorkbook();
        //HSSFSheet s1 = new HSSFSheet(workbook);
        //ISheet sheet1 = workbook.CreateSheet("送货单");  //Sheet1
        //sheet1.DisplayGridlines = false;


        byte[] oByte = null;
        oByte = ms.ToArray();
        System.Web.HttpContext.Current.Response.Clear();
        System.Web.HttpContext.Current.Response.ClearHeaders();
        System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");
        System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel.sheet.binary.macroEnabled.12";
        System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + DeliverySheetData.Bds_SheetNo + "送货单" + ".xlsx");
        System.Web.HttpContext.Current.Response.BinaryWrite(oByte);
        //清除缓存  
        System.Web.HttpContext.Current.Response.Flush();
        System.Web.HttpContext.Current.Response.End();
        //关闭缓冲区 
        ms.Close();
    }
    #endregion

我这么小白的注释应该可以看明白
最后就是几个小问题：
网格问题：我设置属性无效，然后我用style背景色调成白色也可达成一样的效果，
科学计数法问题：比如身份证长度会强制转换成科学计数法，我没找到好办法，就试出了用“‘’”+字段的傻瓜解决方案，代码里也注释，
边框问题：代码里我注释了，可以实现，但是有点问题。我没找到