/**
* Instantiates a new MultiValueListBox.
*/
public MultiValueListBox(Renderer<T> renderer, ProvidesKey<T> keyProvider) {
this.keyProvider = keyProvider;
this.renderer = renderer;
ListBox listBox = new ListBox();
listBox.setMultipleSelect(true);
initWidget(listBox);
getListBox().addChangeHandler(new ChangeHandler() {
public void onChange(ChangeEvent event) {
List<T> newValue = new ArrayList<>();
for (int i = 0; i < values.size(); i++) {
if (getListBox().isItemSelected(i)) {
newValue.add(values.get(i));
}
}
setValue(newValue, true);
}
});
}
MultiValueListBox.java 文件源码
java
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