Char.IsUpper Method (String, Int32)
Indicates whether the character at the specified position in a specified string is categorized as an uppercase letter.
Assembly: mscorlib (in mscorlib.dll)
Character positions in a string are indexed starting from zero.
Valid uppercase letters are members of the following category in UnicodeCategory: UppercaseLetter.
Available since 8
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1