Char.IsLetterOrDigit Method (Char)
Indicates whether the specified Unicode character is categorized as a letter or a decimal digit.
Assembly: mscorlib (in mscorlib.dll)
Valid letters and decimal digits are members of the following categories in UnicodeCategory: UppercaseLetter, LowercaseLetter, TitlecaseLetter, ModifierLetter, OtherLetter, or DecimalDigitNumber.
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