The GroupChatPrincipalSummary type 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.|