Windows apps
Collapse the table of content
Expand the table of content
Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

Char.IsUpper Method (String, Int32)

Indicates whether the character at the specified position in a specified string is categorized as an uppercase letter.

Namespace: System
Assembly: mscorlib (in mscorlib.dll)

public static bool IsUpper (
	string s,
	int index
)
public static boolean IsUpper (
	String s, 
	int index
)
public static function IsUpper (
	s : String, 
	index : int
) : boolean
Not applicable.

Parameters

s

A string.

index

The character position in s.

Return Value

true if the character at position index in s is an uppercase letter; otherwise, false.

Exception typeCondition

ArgumentNullException

s is a null reference (Nothing in Visual Basic).

ArgumentOutOfRangeException

index is less than zero or greater than the last position in s.

Character positions in a string are indexed starting from zero.

Valid uppercase letters are members of the following category in UnicodeCategory: UppercaseLetter.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

XNA Framework

Supported in: 1.0

Community Additions

Show:
© 2017 Microsoft