GridView根据一列自动计算（转载）

程序员健康技术 2022年11月14日

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<%@ Page Language="C#" %><%@ Import Namespace="System.Xml" %>
<!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)
  {    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)));    for (int i = 0; i < 8; i++)
    {
      System.Random rd = new System.Random(Environment.TickCount * 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);
    }
    System.Data.DataView dv = new System.Data.DataView(dt);
    GridView1.DataSource = dv;
    GridView1.DataBind();
  }
</script><html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title></title>
  <script>      function Gen(t) {
          var tr = t.parentNode;
          while (tr.tagName != "TR") {
              tr = tr.parentNode;
          }
          if (!tr) {
              return;
          }
          if (tr.tagName != "TR") {
              return;
          }
          if (t.value != "" && !isNaN(parseInt(t.value, 10)))
              tr.cells[2].getElementsByTagName("span")[0].innerHTML = parseInt(t.value, 10) + parseInt(tr.cells[1].innerHTML)      }  </script>
</head>
<body>
  <form id="form1" runat="server">
  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
  <Columns>
  <asp:TemplateField><ItemTemplate>输入：<asp:textBox id="t" runat="server" onblur="Gen(this)"></asp:textBox></ItemTemplate></asp:TemplateField>
  <asp:BoundField DataField="数学" />
  <asp:TemplateField>
  <ItemTemplate>总计：<span></span></ItemTemplate></asp:TemplateField>
  </Columns>
  </asp:GridView>
  </form>
</body>
</html>