如何设置cookie的时间限制

Question

    protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
    {
        HttpCookie cookie = new HttpCookie("aspcn");
        if ("redirect".Equals(e.CommandName))
        {
            this.Label3.Text = "hahaha";            ImageButton ib = (ImageButton)e.Item.FindControl("ImageButton1");
            string id = ((Label)e.Item.FindControl("Label1")).Text;           
            cookie.Values.Add("id", id);            Response.AppendCookie(cookie);
          cookie.Expires=
            Response.Redirect("cookie.aspx?id="+id+"");
        }    }
}
我想设置这里cookie的时间期限为 10秒 和10分钟 分别怎么设置
请高手解答一下 贴出代码
谢谢

Answer 1

HttpCookie cookie = new HttpCookie("dnt");
cookie.Values.Add("userid",userid);
//cookie["userid"] = userid;
cookie.Expires = DateTime.Now.AddDays(30);
HttpContext.Current.Response.AppendCookie(cookie);

Answer 2

  1 HttpCookie cookie = new HttpCookie("Info");//定义cookie对象以及名为Info的项
  2 DateTime dt = DateTime.Now;//定义时间对象
  3 TimeSpan ts=new TimeSpan(1,0,0,0);//cookie有效作用时间，具体查msdn
  4 cookie.Expires = dt.Add(ts);//添加作用时间
  5 cookie.Values.Add("user","cxbkkk");//增加属性
  6 cookie.Values.Add("userid","1203");
  7 Response.AppendCookie(cookie);//确定写入cookie中 读取cookie
   1 if(Request.Cookies["Info"]!=null)
   2 {
   3 string temp=Convert.ToString(Request.Cookies["Info"].Values["user"])+" "+Convert.ToString(Request.Cookies["Info"].Values["userid"]);
   4 //读全部就用Request.Cookies["Info"].Value)
   5 if(temp=="")
   6 {
   7 Response.Write("空");
   8 }
   9 else
  10 Response.Write(temp);
  11 }
  12 else
  13 {
  14 Response.Write("error");
  15 } 修改cookie
  1 Response.Cookies["Info"]["user"] = "2";
  2 Response.Cookies["Info"].Expires = DateTime.Now.AddDays(1); 删除cookie下的属性
  1 HttpCookie acookie=Request.Cookies["Info"];
  2 acookie.Values.Remove("userid");
  3 acookie.Expires = DateTime.Now.AddDays(1);
  4 Response.Cookies.Add(acookie); 删除所有cookie，就是设置过期时间为现在就行了
  1 int limit=Request.Cookies.Count - 1;
  2 for(int i=0;i<limit;i++)
  3 {
  4 acookie = Request.Cookies(i)
  5 acookie.Expires = DateTime.Now.AddDays(-1)
  6 Response.Cookies.Add(acookie)
  7 }

Answer 3

用Expires [url=http://www.setasp.com/html/ASPjiqiao/200809/27-9.html]参考[/url

Answer 4

10分钟过时:cookie.Expires = DateTime.Now.AddMinutes(10); 
10秒种过时:cookie.Expires = DateTime.Now.AddSeconds(10); 

Answer 5

cookie.Expires = DateTime.Now.AddSeconds(10); 
cookie.Expires = DateTime.Now.AddMinutes(10);

Answer 6

FormsAuthenticationTicket authTicket = new FormsAuthenticationTicket (1).
string encryptedTicket = FormsAuthentication.Encrypt(authTicket);
    HttpCookie authCookie = new HttpCookie(FormsAuthentication.FormsCookieName, encryptedTicket);
    authCookie.Expires = authTicket.Expiration;    Response.Cookies.Add(authCookie);