Make answer class a struct?

Question

Usually play around with making games but I'm taking a detour into making a little question and answer app, for educational purposes.

Anyway I have a question class which holds numerous members: the question itself, the answer to the question, an array of possible answers etc. No doubts this should be a class.

My answer class however only holds a string, an Enum and an int id number as shown below:

public class Answer
{
    public string Answer { get { return answer;} private set { answer = value; } } 
    public Answer_Category = Some_Value; // The enum.
    public int ID { get { return id; } private set { return id; } }

    private string answer;
    private int id;
}

Ok so it holds two strings, also the ctor has been out.

So should I be making this a struct? I ask as it seems comparable to making a Vector a struct, being such a small data structure 'n all.

Naturally being a question and answer application the answer class/struct is going to be the subject of a lot of search calls.

IMO this should be a struct - solely because of the size of the structure, haven't played around with C# for some time though so just looking for some clarification.

Answer 1

The decision boils down to whether you want a value type or a reference type. In other words what do you want the assignment operator to mean? If you want assignment to copy the value, use a struct. If you want assignment to take another reference e, use a class.