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我有兩個字段綁定在一個字段組上。當第一個領域失去焦點時,我需要改變第二個領域。valuechange上的更新字段
我有什麼至今:
class MyBean {
private String first;
private String second;
//getters, setters
}
class MasterData extends CustomComponent{
private TextField first;
private TextField second;
//add to layout, other tasks
}
//the calling code
FieldGroup fieldgroup = new FieldGroup(new MyBean());
fieldgroup.bindMemberFields(new MasterData());
((AbstractComponent)fg.getField("first")).setImmediate(true);
fg.getField("first").addValueChangeListener(new ValueChangeListener() {
@Override
public void valueChange(ValueChangeEvent event) {
MyBean bean = fg.getItemDataSource().getBean();
bean.setSecond((String) event.getProperty().getValue());
try {
fg.commit();
} catch (CommitException e) { }
}
});
值改變事件被稱爲,但第二場永遠不會被更新在屏幕上。我如何強制該字段組重新繪製其字段?