Visual Basic
C#
Managed Extensions for C++
C++/CLI
Property Value
Array of strings.This property accesses the Reference Number DataSet (2:50). The DataSet identifies the Envelope Number of a prior envelope to which the current object refers.
Repeatable (array items represent repeated values), 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.