c# - Enum to dictionary

Question

I want to implement an extension method which converts an enum to a dictionary:

public static Dictionary<int, string> ToDictionary(this Enum @enum)
{
    Type type1 = @enum.GetType();
    return Enum.GetValues(type1).Cast<type1>()
        //.OfType<typeof(@enum)>()
        .ToDictionary(e => Enum.GetName(@enum.GetType(), e));
}

Why it doesn't compile?

An error:

"The type or namespace name 'type1' could not be found (are you missing a using directive or an assembly reference?)"

Answer 1

Jon Skeet has written everything you need ;)

But here you have your code that is working:

public static Dictionary<int, string> ToDictionary(this Enum @enum)
{
  var type = @enum.GetType();
  return Enum.GetValues(type).Cast<int>().ToDictionary(e => e, e => Enum.GetName(type, e));
}