Using an enum as an array index in C#

I want to do the same as in this question, that is:

enum DaysOfTheWeek {Sunday=0, Monday, Tuesday...};
string[] message_array = new string[number_of_items_at_enum];

...

Console.Write(custom_array[(int)DaysOfTheWeek.Sunday]);

however, I would rather have something integral to so, rather than write this error prone code. Is there a built in module in C# that does just this?