User u = new User();
        List<User> list = new List<User>();
        u.Id = 1;
        u.LoginName = "Mr.Han";
        u.PassWord = "123456";
        u.Name = "韩先生";
        list.Add(u);
        u.Id = 2;
        u.LoginName = "Mr.HanHe";
        u.PassWord = "123456";
        u.Name = "赫先生";
        list.Add(u);
        gvUserInfo.DataSource = list;
    }

-----------------------------------------------------

protected void gvUserInfo_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if(e.Row.RowType==DataControlRowType.EmptyDataRow)
        {        

难道list绑定的不是数据行？