String comparison in .NET

Question

What is the difference (in bref) between (.NET)

myString == otherString

and

myString.CompareTo(otherString) == 0

Answer 1

There's no difference, except when myString is null, in which case myString.CompareTo(otherString) throws an error (NullReferenceException). Also, using CompareTo is a little bit slower than ==.

Only use CompareTo when you are interested in knowing if a string is before or after another one in an alphabetical sorting of them. For example "Car".CompareTo("Cat") returns -1 because "Car" is before "Cat" when ordered alphabetically.