is StringComparison.Ordinal the same as InvariantCulture for testing equality?

Question

From their brief summary descriptions, it sounds like the string comparison rules StringComparison.Ordinal and StringComparison.InvariantCulture ar

Answer 1

For the extra credit question

• Comparison confusion: INVARIANT vs. ORDINAL

  ... the notion of an Ordinal sort was added and an Ordinal member was added to the CompareOptions enumeration. Selecting it would ignore all of those cultural collation features and give you a binary sort that would also, incidentally, not vary.

• string comparison InvariantCultureIgnoreCase vs OrdinalIgnoreCase?

• C#: String comparison guidelines and common usage

  The recommendation states that for culture-agnostic comparisons use the Ordinal and OrdinalIgnoreCase comparisons. These are fast and also safe. They rely on byte matching and are excellent options for matching strings for internal (non-UI) processing.