public sealed class Gender

Alternative Gender enum

public sealed class Gender
{
	private readonly char _value;

	public static readonly Gender Male = new Gender('M'); //Male
	public static readonly Gender Female = new Gender('F'); //Female
	public static readonly Gender Unisex = new Gender('U'); //Unisex
	public static readonly Gender Other = new Gender('O'); //Other

	private Gender(char v)
	{
		_value = v;
	}

	public override string ToString()
	{
		return _value.ToString();
	}
}