[T5]How to submit a hidden value?

[Donyee]

I need to submit a hidden value, so i write like this:(copy from this TextField)

public class HiddenField extends AbstractTextField {
        @Override
        protected final void writeFieldTag(MarkupWriter writer, String value) {
                writer.element("input", "type", "hidden", "name", getElementName(), 
"id",
                                getClientId(), "value", value);
        }

        final void afterRender(MarkupWriter writer) {
                writer.end(); // input
        }

}
but it doesn't works!
Can anyone help??


----徐 依伟