Could you tell me if I'm using a date that doesn't contain one of its parts (day, month, year) and I can hide or block that part of the calendar?
Or is it possible to create three simplified calendars and use them based on the date?
I am not sure that I understand what you mean, but could you just use three comboboxes/spinners, one for each of day, month, year, and disable or hide the one that you don't want to use?