UtilsHelper.cs

using System.Web;

namespace WellThen.Helpers
{
    public static class UtilsHelper
    {
        public static void NoCache()
        {
            HttpContext.Current.Response.AppendHeader("Cache-Control", "no-cache, no-store, must-revalidate");
            HttpContext.Current.Response.AppendHeader("Pragma", "no-cache");
            HttpContext.Current.Response.AppendHeader("Expires", "0");
        }
    }
}