The GroupChatPrincipalSummarytype exposes the following members.
|ActiveDirectoryPath||Gets the Active Directory path of this principal. This value is null if the Type of this principal is FederatedUser or FederatedUserGroup . In some contexts, this value may be unavailable, even for those principal types which are defined in Active Directory.|
|EntityGuid||Gets the entity GUID which identifies this user or user group to the system.|
|Name||Gets the name of the user or user group represented by this instance.|
|Type||Gets the type of principal represented by this instance.|
|Uri||Gets the URI of the user or user group represented by this instance.|