How to get the hashcode for enum in C#?

Enum.GetHashCode Method is used to get the HashCode for the value of the current instance. This method is inherited from the Object class.

Syntax:

public override int GetHashCode ();

Returns: This method returns the 32-bit signed integer hash code.

Example:

// C# program to illustrate the
// Enum.GetHashCode() Method
using System;

class GFG {

    enum Color {Blue, Black};

    // Main Method
    public static void Main(String[] args)
    {
        Color c1 = Color.Blue;
        Console.Write("HashCode of Enum Constant " + c1 + " : ");

        // Using the GetHashCode() Method
        Console.WriteLine(c1.GetHashCode());

        Color c2 = Color.Black;
        Console.Write("Hashcode of Enum Constant " + c2 + " : ");

        // Using the GetHashCode Method
        Console.WriteLine(c2.GetHashCode());
    }
}

Output:

HashCode of Enum Constant Blue : 0
Hashcode of Enum Constant Black : 1

Reference:

• https://docs.microsoft.com/en-us/dotnet/api/system.enum.gethashcode?view=netframework-4.8