问题描述
所以我对前端(angular、bootsrap 等)完全陌生，但我在这里创建了一个 JSFiddle 链接，我想要做的基本上是如果有人在下拉菜单，我想使用适当的 ng(切换或显示)，并显示同名的 div 类，在本例中为 div class="VA"
如果他们选择 NY，我希望它显示 div-class="NY"，而不是 VA div(在我的示例中，我只有两个选项，但在我的实际程序中我会有不同的选项(可以是~10)
谁能帮助我或让我朝着正确的方向前进?谢谢.
JSFiddle 链接:http://jsfiddle.net/BootstrapOrBust/kw3qgL3f/
<select class="form-control"><option>选择地点</option><option value="DC">DC</option><option value="NY">NY</option></选择></节>.........<div class="DC"><table class="table"><头><tr><th>位置</th></tr></thead><tr><td><a href="#">Metro</a></td></tr><tr><td><a href="#">Capital</a></td></tr></tbody><div class="NY"><table class="table"><头><tr><th>位置</th></tr></thead>
<tr><td><a href="#">地铁</a></td></tr><tr><td><a href="#">洋基队</a></td></tr></tbody> 解决方案 http://jsfiddle.net/kw3qgL3f/3/
首先 - 你在某处有 ng-app 以便 angular 可以启动.
其次，控制器控制的所有内容都必须位于带有 ng-controller 的元素内部，因此我们将您的 </section> 移到其他所有内容下方.>
当使用 select 时，如果你使用 ng-options 而不是自己列出选项，你会为自己省去很多麻烦，唯一的例外是选择one" 选项 - 将其作为占位符放入:
<option value="">选择一个</option></选择>$scope.places = [{缩写:'NY'，名称:'纽约'}，{缩写:'DC'，名称:'哥伦比亚特区'}];
此时您可以:
<div ng-switch-when="DC">...<div ng-switch-when="NY">...
然而，我实际上可能会这样做:http://jsfiddle.net/kw3qgL3f/4/
<select ng-model="selectedPlace" class="form-control" ng-options="place as place.name for place in place"><option value="">选择一个</option></选择><table ng-if="selectedPlace" class="table"><头><tr><th>位置</th></tr></thead><tr ng-repeat="property in selectedPlace.properties"><td><a href="#">{{property}}</a></td></tr></tbody></节>$scope.places = [{缩写:'NY'，名称:'纽约'，属性:['Subway'，'Yankees']}，{缩写:'DC'，名称:'哥伦比亚特区'，属性:['Metro'，'Captial']}];So I'm completely new to front end (angular, bootsrap, etc), but I have here a JSFiddle link that I created, and what I am trying to do is basically if someone chooses the option "VA" in the drop-down menu, I want to use the appropriate ng (switch or show), and show the div class with the same name, in this case the div class="VA"
If they choose NY, I want it to show the div-class="NY", and not the VA div (in my example I only have two options, but I will have around varying options in my actual program (could be ~10)
Can anyone help me or put me in the right direction? Thanks.
JSFiddle link: http://jsfiddle.net/BootstrapOrBust/kw3qgL3f/
<section ng-controller="Ctrl as loc">
<select class="form-control">
<option>Choose Place</option>
<option value="DC">DC</option>
<option value="NY">NY</option>
</select>
</section>
...
...
...
<div class="DC">
<table class="table">
<thead>
<tr>
<th>Location</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="#">Metro</a></td>
</tr>
<tr>
<td><a href="#">Capital</a></td>
</tr>
</tbody>
</table>
</div>
<div class="NY">
<table class="table">
<thead>
<tr>
<th>Location</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="#">Subway</a></td>
</tr>
<tr>
<td><a href="#">Yankees</a></td>
</tr>
</tbody>
</table>
</div>
解决方案 http://jsfiddle.net/kw3qgL3f/3/
First off - you have have ng-app somewhere so angular can start up.
<section ng-app="test" ng-controller="Ctrl as loc">
Second, everything that the controller controls has to be INSIDE the element with ng-controller, so we move your </section> below everything else.
When using select, you'll save yourself a lot of headache if you use ng-options instead of listing the options yourself, the one exception is the "choose one" option - put that in as the placeholder:
<select ng-model="showLoc" class="form-control" ng-options="place.abbreviation as place.name for place in places">
<option value="">Choose One</option>
</select>
$scope.places = [
{ abbreviation:'NY', name: 'New York'},
{abbreviation: 'DC', name:'District of Columbia'}
];
At which point you can do:
<div ng-switch="showLoc">
<div ng-switch-when="DC">
...
</div>
<div ng-switch-when="NY">
...
</div>
</div>
However, I would actually probably do it like this:http://jsfiddle.net/kw3qgL3f/4/
<section ng-app="test" ng-controller="Ctrl as loc">
<select ng-model="selectedPlace" class="form-control" ng-options="place as place.name for place in places">
<option value="">Choose One</option>
</select>
<table ng-if="selectedPlace" class="table">
<thead>
<tr>
<th>Location</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="property in selectedPlace.properties">
<td><a href="#">{{property}}</a></td>
</tr>
</tbody>
</table>
</section>
$scope.places = [
{ abbreviation:'NY', name: 'New York', properties: ['Subway', 'Yankees']},
{abbreviation: 'DC', name:'District of Columbia', properties: ['Metro', 'Captial']}
];
这篇关于Angular:根据从下拉菜单中选择的选项显示 div 内容(ng-show/ng-switch)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！
08-13 14:18