Is there a function to check if an object is a builtin data type?

Question

I would like to see if an object is a builtin data type in C#

I don\'t want to check against all of them if possible.
That is, I don\'t want to do this:

Answer 1

I think this is one of the best possibilies:

private static bool IsBulitinType(Type type)
{
    return (type == typeof(object) || Type.GetTypeCode(type) != TypeCode.Object);
}