Add, creates and returns a new TdOPCGroup object and adds it to the items collection.

Add, creates and returns a new TdOPCGroup object and adds it to the tdOPCGroups collection.

This is Create, a member of class TdOPCGroups.

This is GetEnumerator, a member of class TdOPCGroups.

GetOPCGroup returns the TdOPCGroup identified by the passed GroupName.

Remove removes the TdOPCGroup with the name passed by the GroupName parameter.

RemoveAll removes all current TdOPCGroup and TdOPCItem objects.