ComboField.java 文件源码

private void addChangeHandler(final PropertyEditorFieldInfo property,
                              final PropertyEditorComboBox listBox) {
    listBox.addChangeHandler(new ChangeHandler() {
                                 @Override
                                 public void onChange(ChangeEvent event) {
                                     int selectedIndex = listBox.getSelectedIndex();
                                     if (validate(property,
                                                  listBox.getItemText(selectedIndex))) {
                                         listBox.clearOldValidationErrors();
                                         property.setCurrentStringValue(listBox.getItemText(selectedIndex));
                                         propertyEditorChangeEventEvent.fire(new PropertyEditorChangeEvent(property,
                                                                                                           listBox.getItemText(selectedIndex)));
                                     } else {
                                         listBox.setValidationError(getValidatorErrorMessage(property,
                                                                                             listBox.getItemText(selectedIndex)));
                                         listBox.setSelectItemByText(property.getCurrentStringValue());
                                     }
                                 }
                             }

    );
}