. NET Add/Remove Cookies

 Public classCookiehelper {/// <summary>        ///Clear Specified Cookie/// </summary>        /// <param name= "CookieName" >CookieName</param>         Public Static voidClearCookie (stringcookiename) {HttpCookie Cookie=Httpcontext.current.request.cookies[cookiename]; if(Cookie! =NULL) {cookie. Expires= DateTime.Now.AddYears (-3);            HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (cookie); }        }        /// <summary>        ///gets the specified cookie value/// </summary>        /// <param name= "CookieName" >CookieName</param>        /// <returns></returns>         Public Static stringGetcookievalue (stringcookiename) {HttpCookie Cookie=Httpcontext.current.request.cookies[cookiename]; stringstr =string.            Empty; if(Cookie! =NULL) {str=cookies.            Value; }            returnstr; }        /// <summary>        ///Add a cookie (24 hours overdue)/// </summary>        /// <param name= "CookieName" ></param>        /// <param name= "Cookievalue" ></param>         Public Static voidSetcookie (stringCookieName,stringcookievalue) {Setcookie (CookieName, Cookievalue, DateTime.Now.AddDays (1.0)); }        /// <summary>        ///Add a cookie/// </summary>        /// <param name= "CookieName" >Cookie Name</param>        /// <param name= "Cookievalue" >Cookie Value</param>        /// <param name= "Expires" >Expiration Time DateTime</param>         Public Static voidSetcookie (stringCookieName,stringCookievalue, DateTime expires) {HttpCookie Cookie=NewHttpCookie (cookiename) {Value=Cookievalue, Expires=expires};        HTTPCONTEXT.CURRENT.RESPONSE.COOKIES.ADD (cookie); }    }

. NET Add/Remove Cookies