我正在开发一个使用bootstrap（v3.2.0）和angularjs（v1.2.26）的应用，我想创建一组columns，可以通过{ {3}}
我的下拉数据绑定没问题，但是当用户在下拉列表中选择不同数量的列时，我无法更改引导响应列类。
到目前为止，此dropdown显示了我的代码。
html ...
<div data-ng-app="">
<div class="container-fluid">
<nav class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button> <span class="navbar-brand navbar-collapse-header">Header</span>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li data-ng-controller="ColumnController" id="columnDropDown" class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Columns: {{columnLayout.value}} <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li data-ng-repeat="layout in columnLayouts"> <a data-ng-click="changeLayout(event)" href="#" class="portlet-column-number">{{layout.text}}</a>
</li>
</ul>
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container-fluid -->
</nav>
</div>
<div class="row">
<div data-ng-controller="ColumnController" data-ng-class="getLayoutClass()">
<div class="panel panel-default">
<div class="panel-heading mo-product-header">Header 1</div>
<div class="panel-body">More content</div>
<div class="panel-footer">Layout class is {{getLayoutClass()}}</div>
</div>
</div>
<div data-ng-controller="ColumnController" data-ng-class="getLayoutClass()">
<div class="panel panel-default">
<div class="panel-heading mo-product-header">Header 2</div>
<div class="panel-body">Some other content</div>
<div class="panel-footer">Layout class is {{getLayoutClass()}}</div>
</div>
</div>
<div data-ng-controller="ColumnController" data-ng-class="getLayoutClass()">
<div class="panel panel-default">
<div class="panel-heading mo-product-header">Header 3</div>
<div class="panel-body">Some content</div>
<div class="panel-footer">Layout class is {{getLayoutClass()}}</div>
</div>
</div>
</div>
</div>
和js ......
function ColumnController($scope) {
$scope.columnLayouts = [{
value: 3,
text: "Reset",
layoutClass: "col-sm-6 col-md-4"
}, {
value: 1,
text: "1",
layoutClass: "col-sm-12"
}, {
value: 2,
text: "2",
layoutClass: "col-sm-6"
}, {
value: 3,
text: "3",
layoutClass: "col-sm-4"
}];
$scope.changeLayout = function () {
$scope.columnLayout = this.layout;
}
$scope.getLayoutClass = function(){
return $scope.columnLayout.layoutClass;
}
$scope.columnLayout = $scope.columnLayouts[0];
}
更新：
好的，事实证明我应该只添加＆＃39; ColumnController＆＃39;到一个元素，在这种情况下，该元素最适合作为所有其他元素的包装。
但是，我认为为了进一步改进这一点，我可能会创建一个单独的导航控制器，然后创建有关更改的fiddle消息，在这种情况下，我可以让ColumnController侦听有关列更改的消息向他们致意，改变驱动列布局的模型。
答案 0 :(得分：2)
问题是你放了太多data-ng-controller="ColumnController"。您无需将其添加到使用角度绑定{{}}或ngRepeat的每个标记。包装容器上只需要一个。例如：
<div data-ng-app="" data-ng-controller="ColumnController">
...
</div>