gwt - 无法从复选框中获取正确的选中/未选中值

Question

我创建了一个复选框：

final CheckBox enable = new CheckBox();
enableAccess.setValue( checked, true );
enableAccess.addClickHandler( new ClickHandler() {

    @Override
    public void onClick( ClickEvent event ) {
        //This works. Gives me the correct value
        ( ( CheckBox ) event.getSource() ).getValue();
        //This does not!!
        enable.getValue();
    }
});

谁能告诉我为什么会这样？

Answer 1

Because one checkbox is called enableAccess and the other one is called enable. The handler is on enableAccess not enable. This works fine for me.

final CheckBox enable = new CheckBox();
enable.setValue(true);
enable.addClickHandler(new ClickHandler() {
  @Override
  public void onClick(ClickEvent event) {
    System.out.println("A " + ((CheckBox) event.getSource()).getValue());
    System.out.println("B " + enable.getValue());
  }
});