| Platform SDK: Exchange Server |
The UserSearchKey data member returns a unique identifier that is used to compare user identities.
Application and Schedule objects
String
Read-only
The UserSearchKey data member can be used to compare the identities of two users. For example, an application can compare a given user's UserSearchKey property with the UserSearchKey property of all the attendees in an Attendees table to determine if the given user is among the attendees.
You should set the entry identifier, MAPI search key, and display name of all new Attendee objects. Failing to set all three of these properties can lead to unexpected results.