Form Validation client event

answered 2019-11-12 14:46:18 +0800

cor3000
6280 ● 2 ● 7

There's no dedicated feature for this. You have to send the required data to the client yourself. Either by updating a custom component or by posting javascript directly.

e.g. you can extend the AbstractValidator and then use this as the base class for your validation

public abstract class ClientSideNotifyingValidator extends AbstractValidator {
    @Override
    protected void addInvalidMessages(ValidationContext ctx, String key, String[] messages, Object value) {
        super.addInvalidMessages(ctx, key, messages, value);
        //Clients.response(new AuInvoke(ctx.getBindContext().getComponent(), "someJsFunctionOnWidget", /*any args*/ key, messages));
        //or
        Clients.evalJavaScript("someArbitraryJS(...);");
    }
}

It might be I misunderstood your question, in that case it will be easier to respond to an actually running example ideally on http://zkfiddle.org/.