Updated: October 2008
Returns a copy of this String object converted to lowercase using the casing rules of the invariant culture.
(in mscorlib.dll)
Visual Basic (Declaration)
Public Function ToLowerInvariant As String
Dim instance As String
Dim returnValue As String
returnValue = instance.ToLowerInvariant()
public string ToLowerInvariant()
public:
String^ ToLowerInvariant()
public function ToLowerInvariant() : String
The invariant culture represents a culture that is culture-insensitive. It is associated with the English language but not with a specific country or region. For details, see Using the InvariantCulture Property.
If your application depends on the case of a string changing in a predictable way that is unaffected by the current culture, use the ToLowerInvariant method. The ToLowerInvariant method is equivalent to ToLower(CultureInfo.InvariantCulture).
.gif) Note: |
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This method does not modify the value of the current instance. Instead, it returns a new string in which all characters in the current instance are lowercased. |
Security Considerations
If you need the lowercase or uppercase version of an operating system identifier, such as a file name, named pipe, or registry key, use the ToLowerInvariant or ToUpperInvariant methods.
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
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.
.NET Framework
Supported in: 3.5, 3.0, 2.0
Reference
Date | History | Reason |
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October 2008
| Expanded the Remarks section and added a note that the method returns a new String object. |
Customer feedback.
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