VB.NET Language in a Nutshell, Second Edition

Name

Option Compare Statement

Syntax

Option Compare {Binary | Text}

Description

Used to set the default method for comparing string data

Rules at a Glance

• When Option Compare is not used in a module, the default comparison method is Binary.

• When Option Compare is used, it must appear at the start of the module’s declarations section, before any procedures.

• Binary comparison — the default text comparison method in Visual Basic — uses the internal binary code of each character to determine the sort order of the characters. For example, "A" < "a".

• Text comparison uses the locale settings of the current system to determine the sort order of the characters. Text comparison is case insensitive. For example, "A" = "a".