RadioButtonList在DataList或许GridView里什么取值

RadioButtonList在DataList或者GridView里什么取值
本人自学所以基础很差- -~~
[解决办法]
页面应该看得懂吧，后台注释如下：

protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                //初始化一个Datatable
                DataTable dt = new DataTable();
                dt.Columns.AddRange(new DataColumn[] { 
                    new DataColumn("name",typeof(string)),
                    new DataColumn("age",typeof(string))
                });

                DataRow dr = null;

                dr = dt.NewRow();
                dr["name"] = "guwei";
                dr["age"] = "30";
                dt.Rows.Add(dr);

                dr = dt.NewRow();
                dr["name"] = "google";
                dr["age"] = "28";
                dt.Rows.Add(dr);

                //DataList绑定这个Datatable 
 
                this.DataList1.DataSource = dt;
                this.DataList1.DataBind();


            }
        }

        //这个而是DataList1控件的ItemDataBound事件
        protected void DataList1_ItemDataBound(object sender, DataListItemEventArgs e)
        {
            //这里可以在DataList1绑定后，获取每一个RadioButtonList
            RadioButtonList radioButtonList = e.Item.FindControl("RadioButtonList1") as RadioButtonList;
        }

        //这里是一个按钮，随意点击遍历这个DataList1的Item，来获取所选的值
        protected void Button1_Click(object sender, EventArgs e)
        {
            foreach (DataListItem item in DataList1.Items)
            {
                RadioButtonList radioButtonList = item.FindControl("RadioButtonList1") as RadioButtonList;
                string value = radioButtonList.SelectedValue;
            }

        }