Question

我无法使用Bindings和带有2个字段的BaseModelData从FramedPanel检索数据。谁能告诉我出了什么问题.. 我也尝试过和编辑选项，但它根本没有将数据绑定到UI ..

Map<String, Object> map = new HashMap<String, Object>(); 
    BaseModelData baseModelData;
    FramedPanel formPanel;
    Bindings bindings;
    User user = new User();
public Widget getLoginForm(){
          TextField textField = new TextField();
          textField.setHeight(10);
          textField.addValidator(new EmptyValidator<String>());
          textField.setName("userId");

          PasswordField passwordField = new PasswordField();
          passwordField.setName("password");
          VBoxLayoutContainer boxLayoutContainer = new VBoxLayoutContainer(VBoxLayoutAlign.CENTER);

          boxLayoutContainer.add(new FieldLabel(textField,"User Id"));
          boxLayoutContainer.add(new FieldLabel(passwordField, "Password"));
          map.put("userId", "asd");
          map.put("password", "");

          formPanel = new FramedPanel();
          formPanel.add(boxLayoutContainer);

           bindings = new Bindings();
          bindings.addFieldBinding(new FieldBinding(textField,"userId"));
          bindings.addFieldBinding(new FieldBinding(passwordField,"password"));

          baseModelData = new BaseModelData();
          baseModelData.setProperties(map);

          bindings.bind(baseModelData);

          TextButton b = new TextButton("Login");
          b.addSelectHandler(new SelectHandler() {

            @Override
            public void onSelect(SelectEvent event) {
            Info.display("User Id : ", baseModelData.get("password").toString());

            }
        });
          formPanel.addButton(b);
}

Answer 1

您应该使用GWT编辑器框架进行数据绑定。

查看Sencha的文档：

http://docs.sencha.com/gxt-guides/3/data/editors/Editors.html

使用Bindings和BaseModelData类是旧样式的GXT。它是遗留包的一部分，应该有助于迁移现有项目。如果你用GXT 3开始一个新项目，我建议使用GWT编辑器框架。

GXT 3.0.6和GWT 2.5.1绑定不更新模型中的数据

1 个答案: