Compares two specified NullableString structures, ignoring or honoring their case and honoring culture-specific information about their formatting.
A 32-bit signed integer indicating the lexical relationship between the two comparands.
|A negative integer||a is less than b.|
|Zero||a is equal to b.|
|A positive integer||a is greater than b.
-or-b is Null.
culture specifies a CultureInfo object, which provides culture-specific information that can affect the comparison. By definition, any NullableString, including the Empty string, compares greater than a Null; and two Null compare equal to each other.
|ArgumentNullException||culture is a null reference (Nothing in Visual Basic).|