Vaadin 8 - Show validation error directly

Vaadin 6 / 7 / 8
1

Hello, how can I show the validation error of an form directly beside the TextField instead of showing it just as an ToolTip?

Thanks for any help!

2

Hi, two ways:

TextField emailField = new TextField("Email");
Label emailStatus = new Label();

binder.forField(emailField)
  .withValidator(new EmailValidator("Must be a valid email address"))
  .withStatusLabel(emailStatus) //  ****** this is one way ******
  .bind(Person::getEmail, Person::setEmail);

TextField nameStatus = new TextField("Name");
Label nameStatus = new Label();

binder.forField(nameField)
  .withValidator(
    name -> name.length() >= 3, "Must have at least three characters")
  .withValidationStatusHandler(status -> { // ****** and this is the other way ******
      nameStatus.setValue(status.getMessage().orElse(""));
      nameStatus.setVisible(status.isError());
    })
  .bind(Person::getName, Person::setName);
3

So simple and works perfectly.

Thanks!

4

Fight for Simplicity :slight_smile: