Getting the max value of an enum

Question

How do you get the max value of an enum?

Answer 1

After tried another time, I got this extension method:

public static class EnumExtension
{
    public static int Max(this Enum enumType)
    {           
        return Enum.GetValues(enumType.GetType()).Cast().Max();             
    }
}

class Program
{
    enum enum1 { one, two, second, third };
    enum enum2 { s1 = 10, s2 = 8, s3, s4 };
    enum enum3 { f1 = -1, f2 = 3, f3 = -3, f4 };

    static void Main(string[] args)
    {
        Console.WriteLine(enum1.one.Max());        
    }
}