Indicates whether a specified string is nullptr, empty, or consists only of white-space characters.
Assembly: mscorlib (in mscorlib.dll)
is a convenience method that is similar to the following code, except that it offers superior performance:
White-space characters are defined by the Unicode standard. The method interprets any character that returns a value of true when it is passed to the Char::IsWhiteSpace method as a white-space character.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, 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.