Support for my question is appreciable.
Thank you very much for your valuable response Mr.Melo.
Can i know how to change the button color (at the bottom), that you have done when we try to select past date.
I just tested the Sample App, and the lock option works fine for me. Can you share your espace so I can take a look and tell you what's wrong?
You can have a look at the Sample app running in my PE: https://joaomelont.outsystemscloud.com/Datedropper_Sample/Example.aspx?_ts=636696652831179750
The first field is configured with from in the lock property.