Using Linq extension on Array class

Question

I'm trying to build a SelectList from an Enum.

Why are the Linq extension methods not available on Array?

var values = Enum.GetValues(typeof(MyEnum));
var test = values.Select(x => x); // compile error

But I can write it this way and it compiles...

var test = from Enum e in values select new { e };

I don't normally use this style of syntax so I'm not really familiar with it, but isn't the above essentially the same as the lambda query which doesn't compile?

Answer 1

Use OfType method to get an IEnumerable<T> that can be queried using LINQ:

var values = Enum.GetValues(typeof(MyEnum));
var test = values.OfType<int>().Select(x => x);