On Tue, 24 May 2011 13:33:48 -0300, <jackkuros...@w9z.org> wrote:
Hm... I've used this before when I ALWAYS want a field to be required,
but I didn't see a way to make a field required or not required based on
conditions that are only known when the page is rendered.
@Inject FieldValidatorSource and use its FieldValidator
createValidators(Field field, String specification) method to generate a
FieldValidator. Then create a FieldValidator getValidator() method using
createValidators() and add t:validate="prop:validator" to your TextField.
Example (taken from
http://tapestry.1045711.n5.nabble.com/Validation-based-on-condition-td2435565.html):
@Inject
private FieldValidatorSource source;
@InjectComponent
private Field yourField;
public FieldValidator getDynamicConstraints() {
return source.createValidators(yourField, "required", null);
}
--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
http://www.arsmachina.com.br
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