I'm trying to make a RadioField, like (yes, no, unknown). For "yes" i have a textfield. I want that if anything is typed on the textfield, "yes" will be selected on the radiobutton. I tried this, but i'm getting an Exception:
size = new NumberField<Double>("size", fieldLabel("size"), HasUnits.MICROMETER);
size.add(new AjaxFormComponentUpdatingBehavior("onchange") {
private static final long serialVersionUID =
2462233190993745889L;
@Override
protected void onUpdate(final AjaxRequestTarget target) {
downSet.setDefaultModelObject("yes");
}
});
add(size);
size.setOutputMarkupId(true);
here is the exception i'm getting:
org.apache.wicket.WicketRuntimeException: Behavior redb.main.modules.sample.view.details.pck.DownSetPanel$2 can only be added to an instance of a FormComponent
at org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior.onBind(AjaxFormComponentUpdatingBehavior.java:79) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.behavior.AbstractAjaxBehavior.bind(AbstractAjaxBehavior.java:68) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.Behaviors.add(Behaviors.java:59) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.Component.add(Component.java:4511) ~[wicket-core-6.8.0.jar:6.8.0]
at redb.main.modules.sample.view.details.pck.DownSetPanel.onInitialize(DownSetPanel.java:61) ~[DownSetPanel.class:na]
at org.apache.wicket.Component.fireInitialize(Component.java:863) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.MarkupContainer$3.component(MarkupContainer.java:961) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.MarkupContainer$3.component(MarkupContainer.java:957) ~[wicket-core-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:144) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:162) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:123) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.util.visit.Visits.visitChildren(Visits.java:192) ~[wicket-util-6.8.0.jar:6.8.0]
at org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:875) ~[wicket-core-6.8.0.jar:6.8.0]
And my NumberField class:
public class NumberField<T extends Number & Comparable<T>> extends SampleField implements HasUnits {
private static final long serialVersionUID = 4885709350741384398L;
private NumberInput<T> numberInput;
private String unit;
public NumberField(String id, IModel<String> fieldLabel, IModel<T> model) {
super(id, fieldLabel, model);
}
public NumberField(String id, IModel<String> fieldLabel) {
super(id, fieldLabel);
}
public NumberField(String id, IModel<String> fieldLabel, String unit) {
super(id, fieldLabel);
this.unit = unit;
}
@SuppressWarnings("unchecked")
public void onInitialize() {
super.onInitialize();
Form<T> f = new Form<>("form");
this.numberInput = new NumberInput<T>("value",
(IModel<T>) getDefaultModel());
this.numberInput.setUnit(unit);
f.add(numberInput);
add(f);
}
}
The SampleField class:
public abstract class SampleField extends Panel {
private static final long serialVersionUID = 1L;
public SampleField(String id, IModel<String> fieldLabel) {
super(id);
addFieldName(fieldLabel);
}
public SampleField(String id, IModel<String> fieldLabel, IModel<?> model) {
super(id, new CompoundPropertyModel<>(model));
addFieldName(fieldLabel);
}
private final void addFieldName(IModel<String> fieldLabel) {
add(new Label("fieldname", fieldLabel));
}
}
Does anyone have an idea on how I can solve this?
Try with an AjaxEventBehavior("change") on your NumberField. For anything more serious you'll have to add the behavior to the wrapped numberInput.
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