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  1. using System;
  2. using System.Linq;
  3.  
  4. public class Test
  5. {
  6. 	class Media
  7. 	{
  8. 		public int GalleryId { get; set; }
  9. 		public string Name { get; set; }
  10. 		public int SortOrder { get; set; }
  11. 	}
  12.  
  13. 	class Gallery
  14. 	{
  15. 		public int GalleryId { get; set; }
  16. 		public string Name { get; set; }
  17. 		public int SortOrder { get; set; }
  18. 	}
  19.  
  20. 	public static void Main()
  21. 	{
  22. 		Gallery[] gs = new Gallery[] { new Gallery { GalleryId = 0, Name = "g0", SortOrder = 1 }, new Gallery { GalleryId = 1, Name = "g1", SortOrder = 0 } };
  23. 		Media[] ms = new Media[] { new Media { GalleryId = 0, Name = "m0", SortOrder = 1}, new Media { GalleryId = 0, Name = "m1", SortOrder = 0 }, new Media { GalleryId = 1, Name = "m2" } };
  24.  
  25. 		    var result = ms
  26.         .OrderBy(m => m.SortOrder)
  27.         .GroupBy(m => m.GalleryId)
  28.         .Join(
  29.             gs, 
  30.             group => group.Key,
  31.             g => g.GalleryId,
  32.             (group, g) => new { Gallery = g, Media = group })
  33.         .OrderBy(x => x.Gallery.SortOrder);
  34.  
  35.         foreach (var x in result)
  36.         {
  37.         	Console.WriteLine("Gallery: " + x.Gallery.Name);
  38.         	foreach (var m in x.Media)
  39.         	{
  40.         		Console.WriteLine(" Media: " + m.Name);
  41.         	}
  42.         }
  43. 	}
  44. }
Success #stdin #stdout 0.06s 34256KB
comments (?)
stdin 
Standard input is empty
stdout 
Gallery: g1
 Media: m2
Gallery: g0
 Media: m1
 Media: m0
https://ideone.com/oRULZe
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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