防刷新的另一种方法

 //模拟JAVASCRIPT类
    public sealed class Script
    {
        public static void Alert(string Message)
        {
            Responses.Write("<script language='javascript'>alert('" + Message + "');history.back(-1);</script>");
            Responses.End();
        }
        public static void Alert(string Message,string URL)
        {
            Responses.Write("<script language='javascript'>alert('" + Message + "');window.location.href='" + URL + "';</script>");
            Responses.End();
        }
    }

调用：

 Script.Alert("发送申请成功",Requests.RawUrl);