fork download 
  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4.  
  5. public class Province
  6. {
  7.     public string province { set; get; }
  8.     public Nullable<int> provinceCode { set; get; }
  9. }
  10.  
  11. public class Zone
  12. {
  13.     public string CityCode { get; set; }
  14.     public string City { get; set; }
  15.     public string Province { get; set; }
  16.     public Nullable<int> ProvinceCode { get; set; }
  17. }
  18.  
  19. public class ZoneTest
  20. {
  21. 	public static void Main()
  22. 	{
  23. 	    List<Zone> ZoneList = new List<Zone>();
  24.  
  25. 	    Zone newZone = new Zone()
  26. 	                   {
  27. 	               	        CityCode = "citycode1",
  28. 	               	        City = "city1",
  29. 	               	        Province = "province1",
  30. 	               	        ProvinceCode = 1
  31. 	                   };
  32.  
  33. 	    ZoneList.Add(newZone);
  34.  
  35. 	    newZone = new Zone()
  36. 	                   {
  37. 	               	        CityCode = "citycode2",
  38. 	               	        City = "city2",
  39. 	               	        Province = "province2",
  40. 	               	        ProvinceCode = 2
  41. 	                   };
  42.  
  43. 	    ZoneList.Add(newZone);
  44.  
  45. 	    newZone = new Zone()
  46. 	                   {
  47. 	               	        CityCode = "citycode2",
  48. 	               	        City = "city2",
  49. 	               	        Province = "province2",
  50. 	               	        ProvinceCode = 2
  51. 	                   };
  52.  
  53. 	    ZoneList.Add(newZone);
  54.  
  55. 	    Console.WriteLine(ZoneList[0].ProvinceCode);
  56. 	    Console.WriteLine(ZoneList[1].ProvinceCode);
  57. 	    Console.WriteLine(ZoneList[2].ProvinceCode);
  58.  
  59. 	   	List<Province> ListZoneWithDistinct = ZoneList.GroupBy(x => new {x.Province, x.ProvinceCode}).Select(grp => new Province() {province = grp.First().Province, provinceCode = grp.First().ProvinceCode}).ToList();
  60.  
  61. 	    Console.WriteLine("Count after Distinct: " + ListZoneWithDistinct.Count);
  62. 	    Console.WriteLine(ListZoneWithDistinct[0].provinceCode);
  63. 	    Console.WriteLine(ListZoneWithDistinct[1].provinceCode);
  64. 	}
  65. }
Success #stdin #stdout 0.05s 34096KB
comments (?)
stdin 
Standard input is empty
stdout 
1
2
2
Count after Distinct: 2
1
2
https://ideone.com/t6LkNz
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!