A cookie wrapper class. Easily read, create, update and delete cookies in MVC. http://www.somethingtocode.com/post/a-cookie-wrapper-class-easily-read-create-update-and-delete-cookies-in-mvc

CookieHelper.cs

public class CookieHelper
    {
        #region Constants
 
        /// <summary>
        /// The cookie name
        /// </summary>
        public const string cookieName = "UserName";
 
        #endregion
 
        #region Enums
 
        public enum EnumCookieInterval
        {
            SECOND = 0,
            MINUTE = 1,
            DAY = 2,
            MONTH = 3,
            YEAR = 4
        };
 
        #endregion
 
        #region Utilities
 
        /// <summary>
        /// Calculates the cookie lifetime.
        /// </summary>
        /// <param name="duration">The duration.</param>
        /// <param name="durationType">Type of the duration.Use enum to specify</param>
        /// <returns>Expire date for cookie</returns>
        private static DateTime CalculateCookieLifetime(int duration, Enum durationType)
        {
            DateTime cookieExpire = DateTime.Now;
 
            switch (Convert.ToInt32(durationType))
            {
                case 0:
                    cookieExpire = DateTime.Now.AddSeconds(duration);
                    break;
 
                case 1:
                    cookieExpire = DateTime.Now.AddMinutes(duration);
                    break;
 
                case 2:
                    cookieExpire = DateTime.Now.AddDays(duration);
                    break;
 
                case 3:
                    cookieExpire = DateTime.Now.AddMonths(duration);
                    break;
 
                case 4:
                    cookieExpire = DateTime.Now.AddYears(duration);
                    break;
 
                default:
                    cookieExpire = DateTime.Now.AddDays(duration);
                    break;
            }
            return cookieExpire;
        }
         
        #endregion
 
        #region Methods
 
        /// <summary>
        /// Creates the cookie.
        /// </summary>
        /// <param name="cookieName">Name of the cookie.</param>
        /// <param name="cookieValue">The cookie value.</param>
        /// <param name="durationType">Type of the duration.Use enum to specify</param>
        /// <param name="duration">The duration.</param>
        /// <returns></returns>
        public static string CreateCookie(string cookieName, string cookieValue, Enum durationType, int duration)
        {
 
            HttpCookie myCookie = new HttpCookie(cookieName);
 
            // Set the cookie value.
            myCookie.Value = cookieValue;
 
            // Set the cookie expiration date.
            myCookie.Expires = CalculateCookieLifetime(duration, durationType);
 
            // Add the cookie.
            //Response.Cookies.Add(myCookie);
            HttpContext.Current.Response.Cookies.Add(myCookie);
 
            return cookieValue;
 
        }
 
        /// <summary>
        /// Reads the cookie.
        /// </summary>
        /// <param name="cookieName">Name of the cookie.</param>
        /// <returns></returns>
        public static string ReadCookie(string cookieName)
        {
 
            string cookieValue = string.Empty;
 
            HttpCookie myCookie = new HttpCookie(cookieName);
            myCookie = HttpContext.Current.Request.Cookies[cookieName];
 
            // Read the cookie information and display it.
            if (myCookie != null)
                cookieValue = myCookie.Value;
 
 
            return cookieValue;
        }
 
        /// <summary>
        /// Updates the cookie.
        /// </summary>
        /// <param name="cookieName">Name of the cookie.</param>
        /// <param name="cookieValue">The cookie value.</param>
        /// <param name="durationType">Type of the duration.Use enum to specify</param>
        /// <param name="duration">The duration.</param>
        /// <returns></returns>
        public static string UpdateCookie(string cookieName, string cookieValue, Enum durationType, int duration)
        {
 
            HttpCookie myCookie = new HttpCookie(cookieName);
            myCookie = HttpContext.Current.Request.Cookies[cookieName];
 
            // Set the cookie value.
            myCookie.Value = cookieValue;
 
            // Set the cookie expiration date.
            myCookie.Expires = CalculateCookieLifetime(duration, durationType);
 
            // Add the cookie.
            //Response.Cookies.Add(myCookie);
            HttpContext.Current.Response.Cookies.Add(myCookie);
 
            return cookieValue;
 
        }
 
        /// <summary>
        /// Deletes the cookie.
        /// </summary>
        /// <param name="cookieName">Name of the cookie.</param>
        public static void DeleteCookie(string cookieName)
        {
            HttpCookie myCookie = new HttpCookie(cookieName);
 
            DateTime cookieExpire = DateTime.Now;
 
            // Set the cookie expiration date.
            myCookie.Expires = cookieExpire.AddDays(-1);
            HttpContext.Current.Response.Cookies.Add(myCookie);
 
        }
 
        #endregion
    }