невозможно удалить или удалить единый знак cookie в asp.net mvc

Question

string[] myCookies = Request.Cookies.AllKeys;

foreach (string cookie in myCookies)
{
    Response.Cookies[cookie].Expires = DateTime.Now.AddDays(-1);
}

Answer 1

  if (Request.Cookies["UserSettings"] != null)
 {

     HttpCookie myCookie = new HttpCookie("UserSettings");
     myCookie.Expires = DateTime.Now.AddDays(-1d);
     Response.Cookies.Add(myCookie);
 }