C＃无法添加行到GridView（错误：缺少一些参考）

Question

我正在尝试简单地将一些行添加到gridview。我的直接代码如下：using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class _Default : System.Web.UI.Page{    protected void Page_Load(object sender, EventArgs e)    {       GridView1.Rows.A //(and here the intellisense does not give me help)    }}如果我强制智能感知，vs会抱怨缺少指令