ASP.NET后台显示信息、修改密码等操作

protected void Page_Load(object sender, EventArgs e)
    {
        //显示姓名等信息
        string sql = "select * from [stu] where id="+Convert.ToString(Request.QueryString["Id"]);
        DataTable dt = new SqlHelper().ExecuteQuery(sql, CommandType.Text);
        Label1.Text= Convert.ToString(dt.Rows[0]["stuname"]);

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //修改密码等
        string upsql = "update [stu] set [password]=" + TextBox1.Text.Trim() + "where id=" + Convert.ToString(Request.QueryString["Id"]);
        int rows = new SqlHelper().ExecuteNonQuery(upsql, CommandType.Text);
        Response.Write("<script language='javascript'>alert('密码修改成功!');top.location='./stu.aspx';</script>");
    }

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原文链接 http://www.itstu.net/plus/view.php?aid=100