.NET Framework 4.6 and 4.5
The GroupCollection type exposes the following members.
|Count||Returns the number of groups in the collection.|
|IsReadOnly||Gets a value that indicates whether the collection is read-only.|
|IsSynchronized||Gets a value that indicates whether access to the GroupCollection is synchronized (thread-safe).|
|Item[Int32]||Enables access to a member of the collection by integer index.|
|Item[String]||Enables access to a member of the collection by string index.|
|SyncRoot||Gets an object that can be used to synchronize access to the GroupCollection.|