ABAddressBook.ExternalChange Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Raised when the address book database is modified by another address book instance, either in the same process or in a different process.
public event EventHandler<AddressBook.ExternalChangeEventArgs> ExternalChange;member this.ExternalChange : EventHandler<AddressBook.ExternalChangeEventArgs> Event Type
Remarks
Subscribing registers an external-change callback with the underlying ABAddressBook. When the notification fires, the local instance may be out of date; call Revert() to reload the latest data.