Adobe Lifecycle Designer retrieve an @value

Hi all,

i am working with C4C.

i want to retrieve the filename of a signature, i can see with #data the value graphical signature is displaying .

But when i choose @filename it will not give me the name of the file, should this work in general or do i miss here anything else?

Data Binding:

$record.ServiceRequest.TicketSignature.BuyerSignature.fileName

regards,

Enrico