i have worked in one application and in that required filter for search spaces. now table model is like below.

public class Listing {     public int ID { get; set; }     public string Title { get; set; }     public Nullable< int> NoOfSpaces { get; set; }     public Nullable<int> PricePerDay { get; set; }     public bool ShowPricePerDay { get; set; }     public Nullable<int> PricePerWeek { get; set; }     public bool ShowPricePerWeek { get; set; }     public Nullable<int> PricePerMonth { get; set; }     public bool ShowPricePerMonth { get; set; }     public Nullable<double> PricePerHour { get; set; }     public bool ShowPricePerHour { get; set; } } 

now in my front-end side filter by either hour/day/week/month. for that i have bind drop-down from enum and my enum like.

public enum ListingAvailableBy {     Hour,     Day,     Week,     Month } 

currently my search method

 public async Task<IEnumerable<Listing>> GetSearchResult(SearchListingModel model)     {         IEnumerable<Listing> items = null;          items = await _listingService.Query(x => !x.IsDeleted).SelectAsync();          if (model.ListingAvailableBy.HasValue)         {             items = items.Where(x => x.ListingAvailableBy(model.ListingAvailableBy.Value));         }         return items;     } 

and i have added ListingAvailableBy(ListingAvailableBy filter) method in my Listing class

public bool ListingAvailableBy(ListingAvailableBy filter)     {         if (filter == Enum.ListingAvailableBy.Hour)         {             return ShowPricePerHour && PricePerHour.HasValue;         }         else if (filter == Enum.ListingAvailableBy.Day)         {             return ShowPricePerDay && Price.HasValue;         }         else if (filter == Enum.ListingAvailableBy.Week)         {             return ShowPricePerWeek && PricePerWeek.HasValue;         }         else if (filter == Enum.ListingAvailableBy.Month)         {             return ShowPricePerMonth && PricePerMonth.HasValue;         }         return true;     } 

please suggest me what i am implemented is current or any better improvement for code any changes.