Assembly: System (in system.dll)
The collection of group names contains the set of strings used to name capturing groups in the expression. Even if capturing groups are not explicitly named, they are automatically assigned numerical names (1, 2, 3, and so on). Therefore, this collection can be used to determine the number of groups.
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.