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.Equals

Leo Ngai
Leo Ngai
2,184 Points
Posted by Leo Ngai
Leo Ngai
2,184 Points

It always say compile error

It always say compile error

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

        public override bool Equals(object obj)
        {
            if(Word == obj.Word)
            {
                return true;
            }
            else
            {  
                return false;
            }
        }

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

        public override string ToString()
        {
            return Word;
        }
    }
}

2 Answers

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

:point_right: You've skipped a couple of steps.

Before you can access the .Word property of the passed argument, you must cast it to the proper type (VocabularyWord) and check to be sure it is not null. You can confirm the type and check for null at the same time with the "is" operator.

There's an example of these steps shown in the Object.Equals video that precedes this challenge — you might want to re-watch it for more details.

Leo Ngai
Leo Ngai
2,184 Points
Leo Ngai
Leo Ngai
2,184 Points

Thanks. I got it resolved by following your suggestions!