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  1. using System;
  2. using System.Collections.Generic;
  3. using System.IO;
  4. using System.Linq;
  5.  
  6. namespace reactive_test
  7. {
  8.     class Program
  9.     {
  10.         public static void Main()
  11.         {
  12.  
  13.             List<string> val1 = new List<string> {
  14.     		  "File_1.txt","File_2.txt","File_1_Over.txt","File_2_Item.txt","File_1_Over.bat",
  15. 				"File_1_Over_test.bat","File_2_Standard.bat","File_2_Item_Standard.bat"
  16. 			};
  17.  
  18.             //val1.Sort(( x, y ) => string.Compare( Path.GetExtension(y), Path.GetExtension(x) ));
  19.             var val = val1
  20.                 .GroupBy(f => Path.GetFileNameWithoutExtension(f))
  21.                 .OrderBy(group => group.Key);
  22.  
  23.             foreach (var group in val)
  24.             {
  25.                 var q = group.OrderByDescending(f => Path.GetExtension(f));
  26.                 foreach (var f in q)
  27.                 {
  28.                     Console.WriteLine(f);
  29.                 }
  30.             }
  31.  
  32.         }
  33.     }
  34. }
  35.  
Success #stdin #stdout 0.05s 37320KB
comments (?)
stdin 
Standard input is empty
stdout 
File_1.txt
File_1_Over.txt
File_1_Over.bat
File_1_Over_test.bat
File_2.txt
File_2_Item.txt
File_2_Item_Standard.bat
File_2_Standard.bat
https://ideone.com/KbhaGo
language:
C# (gmcs 5.20.1)
created:
11 years ago
visibility:
public

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