| Syntax |
Option Compare [Binary | Text]
|
| Description |
Controls how strings are compared. |
| Comments |
When
Option Compare
is set to
Binary
, then string comparisons are case-sensitive (for example, "
A
" does not equal "
a
"). When it is set to
Text
, string comparisons are case-insensitive (for example, "
A
" is equal to "
a
"). The default value for
Option Compare
is
Binary
. The
Option Compare
statement affects all string comparisons in any statements that follow the
Option Compare
statement. Additionally, the setting affects the default behavior of
Instr
,
StrComp
, and the
Like
operator. The following table shows the types of string comparisons affected by this setting:
> < <>
<= >= Instr
StrComp Like
The
Option Compare
statement must appear outside the scope of all subroutines and functions. In other words, it cannot appear within a
Sub
or
Function
block. |
| Example |
This example shows the use of Option Compare. Option Compare Binary
Sub CompareBinary
a$ = "This String Contains UPPERCASE."
b$ = "this string contains uppercase."
If a$ = b$ Then
MsgBox "The two strings were compared case-insensitive."
Else
MsgBox "The two strings were compared case-sensitive."
End If
End Sub
Option Compare Text
Sub CompareText
a$ = "This String Contains UPPERCASE."
b$ = "this string contains uppercase."
If a$ = b$ Then
MsgBox "The two strings were compared case-insensitive."
Else
MsgBox "The two strings were compared case-sensitive."
End If
End Sub
Sub Main()
CompareBinary 'Calls subroutine above.
CompareText 'Calls subroutine above.
End Sub
|
| See Also |
Like (operator); InStr (function); StrComp (function); Comparison Operators (topic). |