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  • 将 GridView 中的内容导出到 Excel 中多个工作表（Sheet） 的方法

    Excel 可以保存成 xml 格式，并且支持Sheet功能，因此，我们就可以利用这个功能将 Gridview 导出到多个 Sheet  中去。而且可以很好地控制导出的格式。下面就是完整的代码（注意：本站的代码都是可以直接复制、保存成aspx文件运行的。）：

    例子

    ASPX 代码
    <%@ Page Language="C#" EnableViewState="true" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    <script runat="server">

      protected     void Page_Load(object sender, EventArgs e)
      {
            if (!Page.IsPostBack)
        {
          System.Data.DataTable dt     = new System.Data.DataTable();
          System.Data.DataRow dr;
          dt.Columns.Add(    new System.Data.DataColumn("学生班级", typeof(System.String)));
          dt.Columns.Add(    new System.Data.DataColumn("学生姓名", typeof(System.String)));
          dt.Columns.Add(    new System.Data.DataColumn("语文", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("数学", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("英语", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("计算机", typeof(System.Decimal)));
          System.Random rd     = new System.Random();
              for (int i = 0; i < 88; i++)
          {
            dr     = dt.NewRow();
            dr[    0] = "班级" + i.ToString();
            dr[    1] = "【孟子E章】" + i.ToString();
            dr[    2] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    3] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    4] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    5] = System.Math.Round(rd.NextDouble() * 100, 0);
            dt.Rows.Add(dr);
          }
          GridView1.DataSource     = dt;
          GridView1.DataBind();
        }
      }

      protected     void Button1_Click(object sender, EventArgs e)
      {
            //假如每10条数据放在一个 Sheet 里面，先计算需要多少个 Sheet
        int ItenCountPerSheet = 10;
            int SheetCount = Convert.ToInt32(Math.Ceiling((double)GridView1.Rows.Count / ItenCountPerSheet));

        String ExportFileName = "孟宪会Excel表格测试";
        if (Request.Browser.Browser.IndexOf("MSIE") > -1)
        {
          ExportFileName = Server.UrlEncode(ExportFileName);
        }
        Response.ClearContent();
        Response.BufferOutput = true;
        Response.Charset = "utf-8";
        Response.ContentType = "text/xml";
        Response.ContentEncoding = System.Text.Encoding.UTF8;
        Response.AppendHeader("Content-Disposition", "attachment;filename=" + ExportFileName + ".xls");
        // 采用下面的格式，将兼容 Excel 2003,Excel 2007, Excel 2010。
        //     Response.AppendHeader("Content-Disposition", "attachment;filename="+Server.UrlEncode("孟宪会Excel表格测试")+".xml");
        Response.Write(    "<?xml version='1.0'?><?mso-application progid='Excel.Sheet'?>");
        Response.Write(@    "\r\n<Workbook xmlns='urn:schemas-microsoft-com:office:spreadsheet'
          xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel'
          xmlns:ss='urn:schemas-microsoft-com:office:spreadsheet' xmlns:html='http://www.w3.org/TR/REC-html40'>    ");
        Response.Write(@    "\r\n<DocumentProperties xmlns='urn:schemas-microsoft-com:office:office'>");
        Response.Write(@    "\r\n<Author>孟宪会</Author><LastAuthor>孟子E章</LastAuthor>
              <Created>2010-09-08T14:07:11Z</Created><Company>mxh</Company><Version>1990</Version>    ");
        Response.Write(    "\r\n</DocumentProperties>");
        Response.Write(@    "\r\n<Styles><Style ss:ID='Default' ss:Name='Normal'><Alignment ss:Vertical='Center'/>
          <Borders/><Font ss:FontName='宋体' x:CharSet='134' ss:Size='12'/><Interior/><NumberFormat/><Protection/></Style>    ");
            //定义标题样式    
        Response.Write(@"<Style ss:ID='Header'><Borders><Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/></Borders>
           <Font ss:FontName='宋体' x:CharSet='134' ss:Size='18' ss:Color='#FF0000' ss:Bold='1'/></Style>    ");
        
            //定义边框
        Response.Write(@"<Style ss:ID='border'><NumberFormat ss:Format='@'/><Borders>
          <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/></Borders></Style>    ");
          
        Response.Write(    "</Styles>");


            for (int i = 0; i < SheetCount; i++)
        {
              //计算该 Sheet 中的数据起始行和结束行。
          int start = ItenCountPerSheet * i;
              int end = ItenCountPerSheet * (i + 1);
              if (end > GridView1.Rows.Count) end = GridView1.Rows.Count;
        
          Response.Write(    "\r\n<Worksheet ss:Name='Sheet" + (i+1) + "'>");
          Response.Write(    "\r\n<Table x:FullColumns='1' x:FullRows='1'>");
              //输出标题

          Response.Write(    "\r\n<Row ss:AutoFitHeight='1'>");
                for (int j = 0; j < GridView1.HeaderRow.Cells.Count; j++)
            {
              Response.Write(    "<Cell ss:StyleID='Header'><Data ss:Type='String'>" + GridView1.HeaderRow.Cells[j].Text + "</Data></Cell>");
            }
              Response.Write(    "\r\n</Row>");

               for (int j = start; j < end; j++)
            {
              Response.Write(    "\r\n<Row>");
                  for (int c = 0; c < GridView1.HeaderRow.Cells.Count; c++)
              {
                    //对于数字，采用Number数字类型
                if (c > 1)
                {
                  Response.Write(    "<Cell ss:StyleID='border'><Data ss:Type='Number'>" + GridView1.Rows[j].Cells[c].Text + "</Data></Cell>");
                }
                    else
                {
                  Response.Write(    "<Cell ss:StyleID='border'><Data ss:Type='String'>" + GridView1.Rows[j].Cells[c].Text + "</Data></Cell>");
                }
              }
                Response.Write(    "\r\n</Row>");
            }
          Response.Write(    "\r\n</Table>");
          Response.Write(    "\r\n</Worksheet>");
          Response.Flush();
        }
        Response.Write(    "\r\n</Workbook>");
        Response.End();
      }

    </script>

    <html xmlns="http://www.w3.org/1999/xhtml">
    <head runat="server">
          <title></title>
    </head>
    <body>
          <form id="form1" runat="server">
          <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="导出测试" />
          <asp:GridView ID="GridView1" runat="server">
          </asp:GridView>
          </form>
    </body>
    </html>

    另外，请注意：代码里面添加了\r\n换行，是为了生成出来的xml格式有换行，实际可以不用。

    如果是DataTable，DataSet，可以直接导出成文件。下面是完整的源代码：

    C# 代码
    <%@ Page Language="C#" %>

    <script runat="server">

          protected void Page_Load(object sender, EventArgs e)
      {
            // 下面采用的是DataTable，也可以采用DataSet，其中每个DataTable可以保存成一个 Sheet
            // 迅雷下载时可以在下载完毕后会自动把文件名更新成 xls 或者 xml 的。
        System.Data.DataTable dt = new System.Data.DataTable();
            if (!Page.IsPostBack)
        {
          System.Data.DataRow dr;
          dt.Columns.Add(    new System.Data.DataColumn("学生班级", typeof(System.String)));
          dt.Columns.Add(    new System.Data.DataColumn("学生姓名", typeof(System.String)));
          dt.Columns.Add(    new System.Data.DataColumn("语文", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("数学", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("英语", typeof(System.Decimal)));
          dt.Columns.Add(    new System.Data.DataColumn("计算机", typeof(System.Decimal)));
          System.Random rd     = new System.Random();
              for (int i = 0; i < 88; i++)
          {
            dr     = dt.NewRow();
            dr[    0] = "班级" + i.ToString();
            dr[    1] = "【孟子E章】" + i.ToString();
            dr[    2] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    3] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    4] = System.Math.Round(rd.NextDouble() * 100, 0);
            dr[    5] = System.Math.Round(rd.NextDouble() * 100, 0);
            dt.Rows.Add(dr);
          }
        }

            //假如每10条数据放在一个 Sheet 里面，先计算需要多少个 Sheet
        int ItenCountPerSheet = 10;
            int SheetCount = Convert.ToInt32(Math.Ceiling((double)dt.Rows.Count / ItenCountPerSheet));
        Response.ClearContent();
        Response.BufferOutput     = true;
        Response.Charset     = "utf-8";
        Response.ContentType     = "application/ms-excel";
        Response.AddHeader(    "Content-Transfer-Encoding", "binary");
        Response.ContentEncoding     = System.Text.Encoding.UTF8;
            //Response.AppendHeader("Content-Disposition", "attachment;filename="+Server.UrlEncode("孟宪会Excel表格测试")+".xls");
            // 采用下面的格式，将兼容 Excel 2003,Excel 2007, Excel 2010。

        String FileName     = "孟宪会Excel表格测试";
            if (!String.IsNullOrEmpty(Request.UserAgent))
        {
              // firefox 里面文件名无需编码。
          if (!(Request.UserAgent.IndexOf("Firefox") > -1 && Request.UserAgent.IndexOf("Gecko") > -1))
          {
            FileName     = Server.UrlEncode(FileName);
          }
        }
        Response.AppendHeader(    "Content-Disposition", "attachment;filename=" + FileName + ".xml");
        Response.Write(    "<?xml version='1.0'?><?mso-application progid='Excel.Sheet'?>");
        Response.Write(    @"<Workbook xmlns='urn:schemas-microsoft-com:office:spreadsheet'
          xmlns:o='urn:schemas-microsoft-com:office:office' xmlns:x='urn:schemas-microsoft-com:office:excel'
          xmlns:ss='urn:schemas-microsoft-com:office:spreadsheet' xmlns:html='http://www.w3.org/TR/REC-html40'>    ");
        Response.Write(    @"<DocumentProperties xmlns='urn:schemas-microsoft-com:office:office'>");
        Response.Write(    @"<Author>孟宪会</Author><LastAuthor>孟子E章</LastAuthor>
              <Created>2010-09-08T14:07:11Z</Created><Company>mxh</Company><Version>1990</Version>    ");
        Response.Write(    "</DocumentProperties>");
        Response.Write(    @"<Styles><Style ss:ID='Default' ss:Name='Normal'><Alignment ss:Vertical='Center'/>
          <Borders/><Font ss:FontName='宋体' x:CharSet='134' ss:Size='12'/><Interior/><NumberFormat/><Protection/></Style>    ");
            //定义标题样式    
        Response.Write(@"<Style ss:ID='Header'><Borders><Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/>
           <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/></Borders>
           <Font ss:FontName='宋体' x:CharSet='134' ss:Size='18' ss:Color='#FF0000' ss:Bold='1'/></Style>    ");

            //定义边框
        Response.Write(@"<Style ss:ID='border'><NumberFormat ss:Format='@'/><Borders>
          <Border ss:Position='Bottom' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Left' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Right' ss:LineStyle='Continuous' ss:Weight='1'/>
          <Border ss:Position='Top' ss:LineStyle='Continuous' ss:Weight='1'/></Borders></Style>    ");

        Response.Write(    "</Styles>");

            //SheetCount代表生成的 Sheet 数目。
        for (int i = 0; i < SheetCount; i++)
        {
              //计算该 Sheet 中的数据起始行和结束行。
          int start = ItenCountPerSheet * i;
              int end = ItenCountPerSheet * (i + 1);
              if (end > dt.Rows.Count) end = dt.Rows.Count;

          Response.Write(    "<Worksheet ss:Name='Sheet" + (i + 1) + "'>");
          Response.Write(    "<Table x:FullColumns='1' x:FullRows='1'>");

              //输出标题
          Response.Write("\r\n<Row ss:AutoFitHeight='1'>");
              for (int j = 0; j < dt.Columns.Count; j++)
          {
            Response.Write(    "<Cell ss:StyleID='Header'><Data ss:Type='String'>" + dt.Columns[j].ColumnName + "</Data></Cell>");
          }
          Response.Write(    "\r\n</Row>");
          

              for (int j = start; j < end; j++)
          {
            Response.Write(    "<Row>");
                for (int c = 0; c < 6; c++)
            {
                  //对于数字，采用Number数字类型
              if (c > 1)
              {
                Response.Write(    "<Cell ss:StyleID='border'><Data ss:Type='Number'>" + dt.Rows[j][c].ToString() + "</Data></Cell>");
              }
                  else
              {
                Response.Write(    "<Cell ss:StyleID='border'><Data ss:Type='String'>" + dt.Rows[j][c].ToString() + "</Data></Cell>");
              }
            }
            Response.Write(    "</Row>");
          }
          Response.Write(    "</Table>");
          Response.Write(    "</Worksheet>");
          Response.Flush();
        }
        Response.Write(    "</Workbook>");
        Response.End();
      }
    </script>
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  • 原文地址：https://www.cnblogs.com/aaa6818162/p/2248281.html
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