CODEWITHSUNDEEP
radio-buttonwicket
user1119371
user1119371

Reputation: 437

Wicket RadioChoice default selected

I have a RadioChoice component with an attached model. The radio choice is associated with a boolean field, hence I have to radio buttons (yes/no). My problem is that the no-button gets pre-selected when the page renders, because the boolean field is set to false. Is there a way to prevent this from happening, as I don't want to have a pre-selected value.

Any ideas are greatly appreciated.

Thank you!

Upvotes: 4

Views: 4841

Answers (3)

mrkernelpanic
mrkernelpanic

Reputation: 4451

If you dont use Booleans, but rather primitives then you can override isSelected in RadioChoice:

@Override
protected boolean isSelected(Boolean object, int index, String selected) {
    return false;
}

Upvotes: 0

ftm
ftm

Reputation: 1

Because your RadioChoice component is attached with a model; when you write yourRadioChoice.getValue() you always get your model value not updated value. For prevent this you can use a temporary variable.

yourRadioChoice.add(new AjaxFormChoiceComponentUpdatingBehavior () {

    private static final long serialVersionUID = 1662824638126944259L;          

    @Override
    protected void onUpdate(AjaxRequestTarget target) {  
                   // you can get current value here and set to your temporary variable
                   // then use anywhere
        }

});

Upvotes: 0

artbristol
artbristol

Reputation: 32427

From an HTML point of view, it's not recommended to omit the pre-selected radio value (see http://www.w3.org/TR/html401/interact/forms.html#radio). It's also rather irritating for the user, since there's no way to unselect all values within a radio group if he/she accidentally clicks one. You should probably rethink your UI - is there room for a third 'Unknown' option?

Upvotes: 3

Related Questions