Validating a text field

26-Jan-2018 16:13

If the error concerns only a single field, you should use the first version so that the field will be highlighted.Starting in Tapestry 5.4, the default behavior for server-side validation failures is to re-render the page within the same request (rather than emitting a redirect).Next, all the fields inside the form are After the fields have done their processing, the Form emits a "validate" event.This is your chance to perform any cross-form validation that can't be described declaratively.The Form component emits a number of component events.

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The Form includes methods , one of which specifies a Field (an interface implemented by all form element components), and one of which is for "global" errors, not associated with any particular field.In addition, AJAX-based form submission is supported using Zones.