How do I override GetHashCode in C#?

How do I override GetHashCode in C#?

To override GetHashCode in C#, you need to provide a custom implementation in your class. This method should return an integer that represents the hash code for the object.

Can you show me an example of how to do that?

Sure! Here's a simple example:

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }

    public override int GetHashCode()
    {
        return Name.GetHashCode() ^ Age.GetHashCode();
    }
}

This combines the hash codes of the Name and Age properties.

Why is it important to override GetHashCode?

Overriding GetHashCode is important for using objects in hash-based collections like dictionaries and hash sets. It ensures that objects are correctly identified and managed.