How to Get the Items Count of an Enum type in the .NET?

As you know, the Enum.GetValues() method can be used to retrieve an array of the values of the constants in a specified enumeration. Based on the that, it is easy to figure out the the value count of an Enum type, see the following code:

enum Styles { Plaid = 0, Striped = 23, Tartan = 65, Corduroy = 78 };

int count = Enum.GetValues(typeof(Styles)).Length

The result will be 4.