在后台获取前台按钮里的值(如LinkButton)

前台ASPX:

< asp:LinkButton ID = " LinkButton1 "  CommandArgument = ' <%# Eval("id") %> '  onclick = " LinkButton1_Click "  runat = " server "  CssClass = " dayifen " > 打一分 </ asp:LinkButton >

后台CS:

protected   void  LinkButton1_Click( object  sender, EventArgs e)
     {
        LinkButton btn = (LinkButton)sender;
        int newsId = int.Parse(btn.CommandArgument);

        if (NewsManager.AddScore(newsId))
        {
            Response.Write("<script>alert(\"打分成功！\")</script>");
            NewsListBind();            
        }
        else
        {
            Response.Write("<script>alert(\"打分失败！\")</script>");
        }
    }