StringComparer.InvariantCultureIgnoreCase Property (System)

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InvariantCultureIgnoreCase Property

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This page is specific to

Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

StringComparer..::.InvariantCultureIgnoreCase Property

Gets a StringComparer object that performs a case-insensitive string comparison using the word comparison rules of the invariant culture.

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

Syntax

Visual Basic (Declaration)

Public Shared ReadOnly Property InvariantCultureIgnoreCase As StringComparer

Visual Basic (Usage)

Dim value As StringComparer

value = StringComparer.InvariantCultureIgnoreCase

public static StringComparer InvariantCultureIgnoreCase { get; }

Visual C++

public:
static property StringComparer^ InvariantCultureIgnoreCase {
    StringComparer^ get ();
}

JScript

public static function get InvariantCultureIgnoreCase () : StringComparer

Property Value

Type: System..::.StringComparer
A new StringComparer object.

Remarks

The invariant culture is the CultureInfo object returned by the InvariantCulture property.

The InvariantCultureIgnoreCase property actually returns an instance of an anonymous class derived from the StringComparer class.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Reference

StringComparer Class

StringComparer Members

System Namespace

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Annotations

Avoid using StringComparer.InvariantCultureIgnoreCase to perform comparisons

David M. Kean - MSFT | Edit | Show History

Although this property returns a comparer that does a culture-insensitive, case-insensitive comparison, it does not do a non-linguistic comparison. This is important when comparing identifiers such as file paths, registry keys, and environment variables, or making security decisions based on the result. Instead, use the comparer returned by StringComparer.OrdinalIgnoreCase.

For more information on the correct way to compare strings, see the following article:

New Recommendations for Using Strings in Microsoft .NET 2.0
http://msdn2.microsoft.com/en-us/library/ms973919.aspx