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Some Standard C# Object Methods That You Might Want to Override

Written on

Alright, I’ll get it straight to the point, since this is just a note to myself anyway,

First one, the ToString() :

class YourClass{
    private string name;
    private int age;
    public override string ToString()
    {
        return "Name: "+this.name+",Age: "+this.age.toString();
    }
}

The reason to this is, simple, to have an easy way to get a string representation of your object. Of course, in a way, you can also create a new method to return the same thing, but it is a good idea to do it the “C# way”, and the ToString method is always there, so why create two methods that serve the same purpose? This is similar to the __string__ method in Python.

The second one, Equals():

public class MyClass
{
    private int x;
    private int y;

    public override bool Equals(object obj)
    {
        MyClass myclass = (MyClass)obj;
        if(myclass.x == this.x && myclass.y == this.y)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}

The reason to do this, is so to have an easy way to compare objects in C#, as objects are stored as references, a ‘==’ comparison will always return false, even if they have the same properties values, unless they actually refer to the same object. The reason to override this method instead of creating a new one, is the same as the reason to override the ToString() method I mentioned above.

This entry is posted in 2012.

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