Gridview把行号绑定到链接中

<%# "?opt=modiuser&id="+Eval("id")+"&rowid="+Container.DataItemIndex %> 

CommandArgument='<%#  DataBinder.Eval(Container.DataItem,"NumberId") %>'

按钮接收参数

        protected void btn_index_Click(object sender, EventArgs e)
        {
            Button btnCreate = sender as Button;
            string id = btnCreate.CommandArgument;
            Response.Write(id);
        }