I used itext5 and to fill in the values of a combo (Acroform) I used this code:
formfields.SetListOption(combo, values, descriptions);
Now with Itext7 I'm a little bit lost, I have this: (formfields is an PdfAcroForm)
formfields.GetField(combo)
but I can't found how to fill the combo values.
Any clues?, Thank you