StringControlAddInBase passing hidden information

Arne_Rosenfeldt

Hello!

I am writing a ControlAddIn to display a field of a table in a graphical way.
I am told to check the NAV license ( how do I call the NAV function SERIALNUMBER from the ControlAddin? It is DotNet after all! ),
and I want to respect page.editable (thus I cannot put a variable in the source expression, but I have to use the field directly),
and I do not want a dummy control, which disturbs the layout on the page ( which I could query for the NAV license via some windows.forms dotnet hacks ).

I want to be sure that I have not missed any detail in one of the three "solutions" above.

I could set-up a Windows service which stores a table with process IDs and
NAV function SERIALNUMBER
and then learning COM ....

Greetings
Arne Rosenfeldt

Arne_Rosenfeldt

Now I have added fields to the table and (mis-)use validate triggers.