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Char.ToUpperInvariant Method

Note: This method is new in the .NET Framework version 2.0.

Converts the value of a Unicode character to its uppercase equivalent using the casing rules of the invariant culture.

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

public static char ToUpperInvariant (
	char c
)
public static char ToUpperInvariant (
	char c
)
public static function ToUpperInvariant (
	c : char
) : char

Parameters

c

A Unicode character.

Return Value

The uppercase equivalent of the c parameter, or the unchanged value of c, if c is already uppercase or not alphabetic.

If your application is unaffected by the current culture and depends on the case of a character changing in a predictable way, use the ToUpperInvariant method. The ToUpperInvariant method is equivalent to ToUpper(Char, CultureInfo.InvariantCulture).

Use String.ToUpperInvariant to convert a string to uppercase.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0

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