Angular UI 模态的范围问题

我在理解/使用角度 UI 模态的作用域时遇到问题。

虽然在这里不是很明显，但我正确设置了模块和所有内容（据我所知），但这些代码示例尤其是我发现错误的地方。

索引.html（其中的重要部分）

<div class="btn-group">
    <button class="btn dropdown-toggle btn-mini" data-toggle="dropdown">
        Actions
        <span class="caret"></span>
    </button>
    <ul class="dropdown-menu pull-right text-left">
        <li><a ng-click="addSimpleGroup()">Add Simple</a></li>
        <li><a ng-click="open()">Add Custom</a></li>
        <li class="divider"></li>
        <li><a ng-click="doBulkDelete()">Remove Selected</a></li>
    </ul>
</div>

控制器.js（再次，重要部分）

MyApp.controller('AppListCtrl', function($scope, $modal){
    $scope.name = 'New Name';
    $scope.groupType = 'New Type';
    $scope.open = function(){
        var modalInstance = $modal.open({
            templateUrl: 'partials/create.html',
            controller: 'AppCreateCtrl'
        });
        modalInstance.result.then(function(response){
            // outputs an object {name: 'Custom Name', groupType: 'Custom Type'}
            // despite the user entering customized values
            console.log('response', response);
            // outputs "New Name", which is fine, makes sense to me.                
            console.log('name', $scope.name);
        });
    };
});
MyApp.controller('AppCreateCtrl', function($scope, $modalInstance){
    $scope.name = 'Custom Name';
    $scope.groupType = 'Custom Type';
    $scope.ok = function(){
        // outputs 'Custom Name' despite user entering "TEST 1"
        console.log('create name', $scope.name);
        // outputs 'Custom Type' despite user entering "TEST 2"
        console.log('create type', $scope.groupType);
        // outputs the $scope for AppCreateCtrl but name and groupType
        // still show as "Custom Name" and "Custom Type"
        // $scope.$id is "007"
        console.log('scope', $scope);
        // outputs what looks like the scope, but in this object the
        // values for name and groupType are "TEST 1" and "TEST 2" as expected.
        // this.$id is set to "009" so this != $scope
        console.log('this', this);
        // based on what modalInstance.result.then() is saying,
        // the values that are in this object are the original $scope ones
        // not the ones the user has just entered in the UI. no data binding?
        $modalInstance.close({
            name: $scope.name,
            groupType: $scope.groupType
        });
    };
});

创建.html（全部）

<div class="modal-header">
    <button type="button" class="close" ng-click="cancel()">x</button>
    <h3 id="myModalLabel">Add Template Group</h3>
</div>
<div class="modal-body">
    <form>
        <fieldset>
            <label for="name">Group Name:</label>
            <input type="text" name="name" ng-model="name" />           
            <label for="groupType">Group Type:</label>
            <input type="text" name="groupType" ng-model="groupType" />
        </fieldset>
    </form>
</div>
<div class="modal-footer">
    <button class="btn" ng-click="cancel()">Cancel</button>
    <button class="btn btn-primary" ng-click="ok()">Add</button>
</div>

所以，我的问题是：为什么范围没有双重绑定到 UI？为什么this有自定义值，而$scope没有？

我试图在 create.html 中向正文div 添加ng-controller="AppCreateCtrl"，但这引发了一个错误："未知提供商：$modalInstanceProvider <- $modalInstance"所以那里没有运气。

在这一点上，我唯一的选择是用this.name和this.groupType传回一个对象，而不是使用$scope，但这感觉是错误的。