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  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Test
  6. {
  7. 	private static List<Product> products;
  8.  
  9. 	public static void Main()
  10. 	{
  11. 		// your code goes here
  12. 		products = new List<Product>()
  13.         {
  14.             new Product{ ProductCategoryId=1, ProductDepartmentId=1, sections="1"},
  15.             new Product{ ProductCategoryId=2, ProductDepartmentId=2, sections="2"},
  16.             new Product{ ProductCategoryId=3, ProductDepartmentId=3, sections="3"}
  17.         };
  18.  
  19.         var prods = GetProducts(2);
  20.         Console.WriteLine("ProductCount: {0}", prods.Count());
  21. 	}
  22.  
  23. 	public static IEnumerable<Product> GetProducts(
  24.         int? productDepartmentId = null,
  25.         int? productCategoryId = null,
  26.         IEnumerable<int?> productCategoryIds = null,
  27.         IEnumerable<string> sections = null)
  28.     {
  29.         var retList = (from obj in products
  30.                        where (productDepartmentId == null || obj.ProductDepartmentId == productDepartmentId) &&
  31.                              (productCategoryId == null || obj.ProductCategoryId == productCategoryId) &&
  32.                              (productCategoryIds == null || productCategoryIds.Contains(obj.ProductCategoryId)) &&
  33.                              (sections == null || sections.Contains(obj.sections))
  34.                        select obj).ToList();
  35.         return retList;
  36.     }
  37. }
  38.  
  39. public class Product
  40. {
  41.     public int ProductDepartmentId { get; set; }
  42.     public int ProductCategoryId { get; set; }
  43.     public string sections { get; set; }
  44. }
Success #stdin #stdout 0.04s 24240KB
comments (?)
stdin 
Standard input is empty
stdout 
ProductCount: 1
https://ideone.com/fSOr3u
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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