从angularui中的嵌套状态访问父状态控制器

Question

我在我的项目中定义了嵌套状态：

        $stateProvider
    .state("MultiStepForm", {
        url: "/Sensor/MultiStepForm",
        templateUrl: "/app/MultiStepForm/MultiStepForm.html",
        controller: "MultiStepFormController",
        controllerAs: "MultiStepLogic"
    })
        .state('MultiStepForm.step1', {
            url: '/step1',
            templateUrl: '/app/MultiStepForm/NestedViews/FormStep1.html',
            controller: "MultiStepLogicStep1Controller",
            controllerAs: "Step1"
        })
        .state('MultiStepForm.step2', {
            url: '/step2',
            templateUrl: '/app/MultiStepForm/NestedViews/FormStep2.html',
            controller: "MultiStepLogicStep2Controller",
            controllerAs: "Step2"
    })
        .state('MultiStepForm.step3', {
            url: '/step3',
            templateUrl: '/app/MultiStepForm/NestedViews/FormStep3.html',
            controller: "MultiStepLogicStep3Controller",
            controllerAs: "Step3"
        });

在 MultiStepForm 状态下我定义了这个属性:

var self = this;
this.data = "someObject";

在 MultiStepForm.step3 状态控制器（Step3）中，我想访问在父状态控制器中定义的属性：

this.data = "some data from MultiStepForm.step3 state"

我的问题是如何从嵌套状态控制器访问父属性？

Answer 1

在将数据注入控制器之前，您需要 'resolve' 该数据。如果它在 parent 得到解决，它将对 children 可用。

像这样：

$stateProvider
    .state("MultiStepForm", {
        url: "/Sensor/MultiStepForm",
        templateUrl: "/app/MultiStepForm/MultiStepForm.html",
        controller: "MultiStepFormController",
        controllerAs: "MultiStepLogic",
        resolve: {
          your_custom_data: ['$stateParams', 'another_service',
                function($stateParams, another_service) {
                    //you can use $stateParams or other services here as needed to get the data you want
                    return the_value_of_your_custom_data;
                }],
    })

然后在你的控制器中：

angular
    .module('your_app')
    .controller('MultiStepLogicStep3Controller', MultiStepLogicStep3Controller);

function MultiStepLogicStep3Controller($state, your_custom_data) {
    //access your $state or custom data here
    this.custom_data = your_custom_data;
}

从angularui中的嵌套状态访问父状态控制器

Access parent state controller from nested state in angularui

angularjs

angular-ui