AngularJS中的范围问题使用AngularUI Bootstrap Modal

发布时间：2020-12-17 09:01:49 所属栏目：安全来源：网络整理

导读：plunker： http://plnkr.co/edit/wURNg8ByPYbEuQSL4xwg example.js： angular.module('plunker',['ui.bootstrap']); var ModalDemoCtrl = function ($scope,$modal) { $scope.open = function () { var modalInstance = $modal.open({ templateUrl: 'modal.h

plunker： http://plnkr.co/edit/wURNg8ByPYbEuQSL4xwg

example.js：

angular.module('plunker',['ui.bootstrap']);
  var ModalDemoCtrl = function ($scope,$modal) {

  $scope.open = function () {
    var modalInstance = $modal.open({
      templateUrl: 'modal.html',controller: 'ModalInstanceCtrl'
    });
  };
};

var ModalInstanceCtrl = function ($scope,$modalInstance) {

  $scope.ok = function () {
    alert($scope.text);
  };

  $scope.cancel = function () {
    $modalInstance.dismiss('cancel');
  };
};

index.html：

<!doctype html>
<html ng-app="plunker">
  <head>
    <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.js"></script>
    <script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.6.0.js"></script>
    <script src="example.js"></script>
    <link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.1/css/bootstrap-combined.min.css" rel="stylesheet">
  </head>
  <body>

  <div ng-controller="ModalDemoCtrl">
    <button class="btn" ng-click="open()">Open me!</button>
    <div ng-show="selected">Selection from a modal: {{ selected }}</div>
  </div>
 </body>
</html>

modal.html：

<div class="modal-header">
    <h3>I'm a modal!</h3>
</div>
<textarea ng-model="text"></textarea>
<div class="modal-footer">
    <button class="btn btn-primary" ng-click="ok()">OK</button>
    <button class="btn btn-warning" ng-click="cancel()">Cancel</button>
</div>

为什么我不能得到$ scope.text在ModalInstanceCtrl中定义，即使我可以使用$ scope.ok和$ scope.cancel？

看起来像一个范围问题。我得到它工作这样：

var ModalInstanceCtrl = function ($scope,$modalInstance) {
    $scope.input = {};
    $scope.ok = function () {
        alert($scope.input.abc);
    };

    $scope.cancel = function () {
        $modalInstance.dismiss('cancel');
    };
};

HTML：

<textarea ng-model="input.abc"></textarea>

（编辑：李大同）

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