Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

C# Intermediate C# System.Object Object.GetHashCode

Tojo Alex
PLUS
Tojo Alex
Courses Plus Student 13,331 Points
Posted by Tojo Alex
Tojo Alex
Courses Plus Student 13,331 Points

can't pass the code challenge

Please tell me what I'm doing wrong here.

VocabularyWord.cs 
using System;
namespace Treehouse.CodeChallenges
{
    public class VocabularyWord
    {
        public string Word { get; private set; }

        public VocabularyWord(string word)
        {
            Word = word;
        }

        public override string ToString()
        {
            return Word;
        }

        public override bool Equals(object obj)
        {
            if(!(obj is VocabularyWord))
            {
                return false;
            }

            var that = obj as VocabularyWord;

            return this.Word.Equals(that.Word);
        }
    }
}

2 Answers

Erik Gabor
Erik Gabor
6,427 Points
Erik Gabor
Erik Gabor
6,427 Points

You have to create a hashcode method for your class, something like this. The better is when this is unique.

 public override int GetHashCode(){

            return  Word.GetHashCode();
        }

Since the base Object already has a defined virtual GetHashCode when implementing it you need to override it. Thus the string has also a method of this kind which comes handy here.