Property: SynchronizeState
Description: Indicates the status of the resource if it is present in the SynchronizeFile. It is read-only.
InSync
Indicates that the resource has not changed since the class was last created or synchronized.
NeedsSync
Indicates that the resource is present but has changed since the class was last created.
NoFile
Indicates that the resource does not exist.
Note: This property is available only for external classes with persistent members.