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Char.IsUpper Method (Char)

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Indicates whether the specified Unicode character is categorized as an uppercase letter.

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

Syntax

'Declaration
Public Shared Function IsUpper ( _
    c As Char _
) As Boolean

public static bool IsUpper(
    char c
)

Parameters

Return Value

Type: System.Boolean
true if c is an uppercase letter; otherwise, false.

Remarks

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

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.