Char::ToUpper Method (Char)
Converts the value of a Unicode character to its uppercase equivalent.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- c
- Type: System::Char
The Unicode character to convert.
Return Value
Type: System::CharThe uppercase equivalent of c, or the unchanged value of c if c is already uppercase, has no uppercase equivalent, or is not alphabetic.
Casing rules are obtained from the current culture.
Use String::ToUpper to convert a string to uppercase.
Notes to CallersAs explained in Best Practices for Using Strings in the .NET Framework, we recommend that you avoid calling character-casing and string-casing methods that substitute default values. Instead, you should call methods that require parameters to be explicitly specified. To convert a character to uppercase by using the casing conventions of the current culture, call the ToUpper(Char, CultureInfo) method overload with a value of CultureInfo::CurrentCulture for its culture parameter.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.