ASP.NET导出Excel时，可选择导出列怎么实现？

最新推荐文章于 2017-05-12 13:42:12 发布

原创最新推荐文章于 2017-05-12 13:42:12 发布 · 1.5k 阅读

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CC 4.0 BY-SA版权

文章标签：

#excel #asp.net #spreadsheet #office #border #button

本文介绍了一个使用ASPX页面导出数据到Excel的方法，包括如何创建数据表、设置样式及分页输出等关键步骤。

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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));


    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="+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。
    // 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>