Question

我有两个相互嵌套的控制器。外部控制器使用ng-switch指令显示/隐藏内部控制器。

外部控制器还包含一个复选框。如果选中此复选框，则内部控制器可见（通过上面的ng-switch指令）。此复选框按预期工作。

还有一个＆＃34; open＆＃34;链接外部控制器。它的onclick处理程序调用外部控制器，并且应该通过模型检查复选框。问题是，即使模型发生变化，视图也不会更新。

这种模式在AngularJS中完美无缺，但在AngularDart中显然没有。我假设Dart区域是罪魁祸首（此时我完全无能为力）。

我坚持使用这种模式或类似的东西，因为我在将AngularDart集成到一个没有使用数据绑定的遗留应用程序的过程中，所以我必须从模型外部触发模型更改。

依靠你的终极智慧，提前谢谢！

<html ng-app>
<head>
    <title>Angular.dart nested controllers</title>
</head>
<body>
<a href="#" id="open">open</a>
<div outer-controller ng-switch="outerCtrl.shouldShowInnerController">
    <input type="checkbox" ng-model="outerCtrl.shouldShowInnerController">
    <div inner-controller ng-switch-when="true">
        Your name: <input ng-model="innerCtrl.yourName">
        <br>
        Hello {{innerCtrl.yourName}}!
    </div>
</div>
<script type="application/dart">
    import "dart:html";
    import 'package:angular/angular.dart';
    import 'package:angular/application_factory.dart';

    OuterController outerController;
    @Controller(selector:'[outer-controller]', publishAs:'outerCtrl')
    class OuterController {
        bool shouldShowInnerController;
        static Scope scope;
        OuterController(Scope _scope) {
            scope = _scope;
            outerController = this;
        }

        void showOuterController() {
            shouldShowInnerController = true;
            scope.apply();
        }
    }

    @Controller(selector:'[inner-controller]', publishAs:'innerCtrl')
    class InnerController {
        String yourName = 'defaultName';
    }

    class MyAppModule extends Module {
        MyAppModule() {
            type(InnerController);
            type(OuterController);
        }
    }

    main() {
        applicationFactory().addModule(new MyAppModule()).run();
        querySelector('#open').onClick.listen((Event event) {
            outerController.showOuterController();
        });
    }
</script>
</body>
</html>

Answer 1

适用于Dart 1.5.1和AngularDart 0.12.0

我只初始化了shouldShowInnerController boolean

<!DOCTYPE html>

<html ng-app>
<head>
    <title>Angular.dart nested controllers</title>
</head>
<body>
<a href="#" id="open">open</a>
<div outer-controller ng-switch="outerCtrl.shouldShowInnerController">
    <input type="checkbox" ng-model="outerCtrl.shouldShowInnerController">
    <div inner-controller ng-switch-when="true">
        Your name: <input ng-model="innerCtrl.yourName">
        <br>
        Hello {{innerCtrl.yourName}}!
    </div>
</div>
<script type="application/dart">
    import "dart:html";
    import 'package:angular/angular.dart';
    import 'package:angular/application_factory.dart';

    OuterController outerController;
    @Controller(selector:'[outer-controller]', publishAs:'outerCtrl')
    class OuterController {
        bool shouldShowInnerController = false;
        static Scope scope;
        OuterController(Scope _scope) {
            scope = _scope;
            outerController = this;
        }

        void showOuterController() {
            shouldShowInnerController = !shouldShowInnerController;
            scope.apply();
        }
    }

    @Controller(selector:'[inner-controller]', publishAs:'innerCtrl')
    class InnerController {
        String yourName = 'defaultName';
    }

    class MyAppModule extends Module {
        MyAppModule() {
            type(InnerController);
            type(OuterController);
        }
    }

    main() {
        applicationFactory().addModule(new MyAppModule()).run();
        querySelector('#open').onClick.listen((Event event) {
            outerController.showOuterController();
        });
    }
</script>
</body>
</html>

Angular Dart：从外部操作控制器时，数据绑定不起作用

1 个答案: