Visual Basic
C#
Managed Extensions for C++
C++/CLI
Property Value
String value.This property accesses the EnvelopeNumber DataSet (1:40). Characters of the DataSet form a number that will be unique for the date specified in 1:70 and for the Service Identifier specified in 1:30.
Contains eight bytes, consisting of numeric characters.
Get accessor returns the tag value if the tag is present in the metadata tree, or null otherwise.
Set accessor replaces the current tag value if the tag is present in the metadata tree, adds the tag if it was not present, or deletes the tag if a null value is passed.
See the IPTC - NAA Information Interchange Model ver. 4.1 specification for tag usage details.