Question

 public PartialViewResult res(int days)

I want to cache this partialview on the base of parameter pass to this result.if parameter goes different then cache are seprate for every different parameter passed to action.

are i can destroy this cache before time period. can a access this cache made in it.

Answer 1

It is not really clear what you really want. I thought about 2 applications.

    public class OutputCacheExt : OutputCacheAttribute
    {
        public string DaysFromParam { get; set; }
        public int Days
        {
            get { return TimeSpan.FromSeconds(Duration).Days; }
            set { Duration = (int)TimeSpan.FromDays(value).TotalSeconds; }
        }
        public override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            if (!string.IsNullOrEmpty(DaysFromParam))
            {
                int days = 0;
                int.TryParse(filterContext.HttpContext.Request[DaysFromParam], out days);
                Days = days;
            }
            base.OnActionExecuting(filterContext);
        }
    }

First application: If you want just set cache in days:

[OutputCacheExt(VaryByParam="none", Days=5)]
public PartialViewResult res(int days){}

Second application: If you want set days from http param:

[OutputCacheExt(VaryByParam="none", DaysFromParam="days")]
public PartialViewResult res(int days){}