Home

extension method

Number rounding extension method

Tue, 2009-03-03 11:32 — Chris Charabaruk

A C# extension method which takes an integer and rounds it to the nearest multiple of 10. Written in response to this question on Stack Overflow.

  1. using System;
  2.  
  3. namespace TestApp
  4. {
  5.     public static class ExtensionMethods
  6.     {
  7.         public static int RoundOff (this int i)
  8.         {
  9.             return ((int)Math.Round(i / 10.0)) * 10;
  10.         }
  11.     }
  12.  
  13.     public class TestApp
  14.     {
  15.         public static void Main()
  16.         {
  17.             int roundedNumber = 236.RoundOff(); // returns 240
  18.             int roundedNumber2 = 11.RoundOff(); // returns 10
  19.             Console.WriteLine(roundedNumber);
  20.             Console.WriteLine(roundedNumber2);
  21.         }
  22.     }
  23. }
Syndicate content