GridView 如何根据条件修改命令按钮的显示的文字？_LINQ | ASP.NET 3.5 | SilverLight2 | MVC

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

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

<script runat="server">
  // 计算数据，完全可以从数据看取得
  System.Data.DataView CreateDataSourceByXianhuiMeng()
  {
    System.Data.DataTable dt = new System.Data.DataTable();
    System.Data.DataRow dr;
    dt.Columns.Add(new System.Data.DataColumn("id", typeof(System.Int32)));
    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] = i * i;
      dr[1] = "【孟子E章】" + i.ToString();
      dr[2] = System.Math.Round(rd.NextDouble() * 100, 2);
      dr[3] = System.Math.Round(rd.NextDouble() * 100, 2);
      dr[4] = System.Math.Round(rd.NextDouble() * 100, 2);
      dr[5] = System.Math.Round(rd.NextDouble() * 100, 2);
      dt.Rows.Add(dr);
    }
    System.Data.DataView dv = new System.Data.DataView(dt);
    return dv;
  }
  protected void Page_Load(object sender, EventArgs e)
  {
    if (!Page.IsPostBack)
    {
      GridView1.DataSource = CreateDataSourceByXianhuiMeng();
      GridView1.DataBind();
    }
  }

  protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
  {
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
      System.Data.DataRowView dv = e.Row.DataItem as System.Data.DataRowView;
      if (Decimal.Parse(dv["语文"].ToString()) > 60)
      {
        LinkButton b = e.Row.Cells[1].Controls[0] as LinkButton;
        b.Text = "冻结";
      }
    }
  }

  protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
  {
    GridView gv = sender as GridView;
    Response.Write("要进行操作的主键的值：" + gv.DataKeys[e.RowIndex].Value);
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
  <title></title>
</head>
<body>
  <form id="form1" runat="server">
  <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataKeyNames="id"
    OnRowDataBound="GridView1_RowDataBound" OnRowDeleting="GridView1_RowDeleting">
    <Columns>
      <asp:BoundField DataField="id" HeaderText="id" />
      <asp:CommandField HeaderText="状态" ShowDeleteButton="True" DeleteText="state" />
      <asp:BoundField DataField="语文" HeaderText="语文成绩" />
    </Columns>
  </asp:GridView>
  </form>
</body>
</html>