OutputCache with multiple VaryByParam

Question

My class Goes like this

public class Search
{

    public string SearchText { get; set; }
    public string ContinentId { get; set; }

    public string CategoryId { get; set; }
    public string InformationById { get; set; }
    public string City { get; set; }
    public string CountryId { get; set; }
    public string NameOfOwner { get; set; }
    public string RegistrationType { get; set; }
}

My action method is

[OutputCache(Duration =60, VaryByParam = "*")]
    public PartialViewResult Search(Search search, int? page)
    {
        //Code goes here
    }

I want the vary By Param to vary with all the properties of my class Search and page