vaadin 8, TextField, show Validation on UI

Flow
1

hello!
I’am trying to migrate my login Form from Vaadin 7 to Vaadin 8, all looks fine, but validation messages do not show in UI on
unchanged Fields. For examlpe if my PasswordField has not changed by user, the validation massage will not show in UI on that Field.
In Vaadin 7 I used setValidationVisible(true) method

31703.java (4.25 KB)

2

I’ve found a better solution: Do not enable LOGIN button until valadate is true:
binder.addValueChangeListener(event → loginBtn.setEnabled(binder.isValid()));