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  1. using System;
  2. using System.Linq;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8.         var List = new []
  9.         {
  10.             new { tovar_code = 1, tovar_kol = 10, tovar_obyem = 20 },
  11.             new { tovar_code = 2, tovar_kol = 20, tovar_obyem = 30 },
  12.             new { tovar_code = 3, tovar_kol = 30, tovar_obyem = 60 },
  13.             new { tovar_code = 4, tovar_kol = 40, tovar_obyem = 80 },
  14.             new { tovar_code = 5, tovar_kol = 50, tovar_obyem = 90 }
  15.         }.ToList();
  16.  
  17.         var total_quantity = List.Sum(x => x.tovar_kol);
  18.         var total_volume = List.Sum(x => x.tovar_obyem);
  19.  
  20.         Console.WriteLine($"Total quantity: {total_quantity}, total volume: {total_volume}");
  21.  
  22.         var result =
  23.             List.Aggregate(
  24.                 new { total_quantity = 0, total_volume = 0 },
  25.                 (sum, curr) => new { total_quantity = sum.total_quantity + curr.tovar_kol,
  26.                                      total_volume = sum.total_volume + curr.tovar_obyem });
  27.  
  28.         Console.WriteLine($"Total quantity: {result.total_quantity}, total volume: {result.total_volume}");
  29.  
  30.         int total_quantity_2 = 0;
  31.         double total_volume_2 = 0;
  32.         foreach (var item in List)
  33.         {
  34.             total_quantity_2 += item.tovar_kol;
  35.             total_volume_2 += item.tovar_obyem;
  36.         }
  37.         Console.WriteLine($"Total quantity: {total_quantity_2}, total volume: {total_volume_2}");
  38. 	}
  39. }
Success #stdin #stdout 0.05s 24032KB
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Standard input is empty
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Total quantity: 150, total volume: 280
Total quantity: 150, total volume: 280
Total quantity: 150, total volume: 280
https://ideone.com/opDSgz
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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