Gets or sets the anonymous identifier for the user.
Assembly: System.Web (in System.Web.dll)
You can use the property to set the anonymous identifier to a custom value during the AnonymousIdentification_Creating event. If you do not specify a value for the property during the AnonymousIdentification_Creating event, a Guid is used.
The AnonymousIdentification_Creating event is only raised when the anonymous identification is Enabled.
The following code example uses the AnonymousIdentification_Creating event to set the anonymous identifier to a custom value.