default comparer

This is a discussion on default comparer within the C# Programming forums, part of the General Programming Boards category; Hello everyone, For a customized class, like I showed in my sample, what will Comparer<>.Default be returned? In my sample, ...

  1. #1
    Registered User
    Join Date
    May 2006
    Posts
    1,579

    default comparer

    Hello everyone,


    For a customized class, like I showed in my sample, what will Comparer<>.Default be returned? In my sample, there is System.ArgumentException.

    Code:
    class Program
        {
            class Foo
            {
    
            }
            
            static void Main(string[] args)
            {
                IComparer<Foo> FooComparer = Comparer<Foo>.Default;
                Foo f1 = new Foo();
                Foo f2 = new Foo();
    
                // System.ArgumentException
                FooComparer.Compare(f1, f2);
    
                return;
            }
        }

    thanks in advance,
    George

  2. #2
    the hat of redundancy hat nvoigt's Avatar
    Join Date
    Aug 2001
    Location
    Hannover, Germany
    Posts
    3,139
    Too lazy for reading again ? Read the text of the exception. Read the MSDN for Comparer, especially the first block that is named "Remarks". Then it should be obvious, what you are missing.
    hth
    -nv

    She was so Blonde, she spent 20 minutes looking at the orange juice can because it said "Concentrate."

    When in doubt, read the FAQ.
    Then ask a smart question.

Popular pages Recent additions subscribe to a feed

Similar Threads

  1. Utilizing another compiled program for a task.
    By kotoroshinoto in forum C Programming
    Replies: 6
    Last Post: 06-03-2008, 02:43 PM
  2. get keyboard and mouse events
    By ratte in forum Linux Programming
    Replies: 10
    Last Post: 11-17-2007, 05:42 PM
  3. constructors
    By shrivk in forum C++ Programming
    Replies: 7
    Last Post: 06-24-2005, 10:35 PM
  4. A question about constructors...
    By Wolve in forum C++ Programming
    Replies: 9
    Last Post: 05-04-2005, 05:24 PM
  5. Switching Default Buttons :: MFC
    By kuphryn in forum Windows Programming
    Replies: 2
    Last Post: 07-02-2002, 05:08 PM

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21