在ng-repeat中为ng-click函数添加参数似乎不起作用

我有一个简单的ng-repeat循环，如下所示:

<li ng-repeat='task in tasks'>
<p> {{task.name}}
<button ng-click="removeTask({{task.id}})">remove</button>
</li>

在控制器$scope.removeTask(taskID)中有一个函数。

据我所知，Angular会首先渲染视图，用一个数字替换插入的{{task.id}}，然后在click事件时，计算ng-click字符串。

在这种情况下，ng-click完全得到预期的结果，即:ng-click="removeTask(5)".然而…它什么都没做。

当然，我可以写一段代码从$tasks数组甚至DOM中获取task.id，但这看起来不像Angular的方式。

那么，如何在ng-repeat循环中向ng-click指令添加动态内容呢?

481302 次浏览
小开
最佳答案

而不是

<button ng-click="removeTask(\{\{task.id}})">remove</button>

这样做:

<button ng-click="removeTask(task.id)">remove</button>

请看这把小提琴:

http://jsfiddle.net/JSWorld/Hp4W7/34/ < a href = " http://jsfiddle.net/JSWorld/Hp4W7/34/ " > < / >

小开

有一件事真的让我很困扰，当我在浏览器中检查这个html时，并没有看到它扩展成这样:

<button ng-click="removeTask(1234)">remove</button>

我看到:

<button ng-click="removeTask(task.id)">remove</button>

然而，后者是可行的!

这是因为你在“Angular世界”中，当你在ng-click=""里面时，Angular已经知道任务了。我就像你在模型里一样。不需要像\{\{}}那样使用数据绑定。

此外，如果你想传递任务对象本身，你可以喜欢:

<button ng-click="removeTask(task)">remove</button>
小开

这个作品。谢谢。我正在注入自定义html并在控制器中使用angular编译它。

        var tableContent= '<div>Search: <input ng-model="searchText"></div>'
+'<div class="table-heading">'
+    '<div class="table-col">Customer ID</div>'
+ ' <div class="table-col" ng-click="vm.openDialog(c.CustomerId)">\{\{c.CustomerId}}</div>';


$timeout(function () {
var linkingFunction = $compile(tableContent);
var elem = linkingFunction($scope);


// You can then use the DOM element like normal.
jQuery(tablePanel).append(elem);


console.log("timeout");
},100);
小开

同样值得注意的是，对于那些在搜索中发现这个的人来说，这个…

<div ng-repeat="button in buttons" class="bb-button" ng-click="goTo(button.path)">
<div class="bb-button-label">\{\{ button.label }}</div>
<div class="bb-button-description">\{\{ button.description }}</div>
</div>

注意ng-click的值。传递给goTo()的参数是来自绑定对象(button)属性的字符串，但它没有被引号括起来。看起来AngularJS为我们处理了这个。我在这上面耽搁了几分钟。

小开

以上答案非常棒。您可以查看下面的完整代码示例，以便确切地了解如何使用

  	var app = angular.module('hyperCrudApp', []);


app.controller('usersCtrl', function($scope, $http) {
$http.get("https://jsonplaceholder.typicode.com/users").then(function (response) {
console.log(response.data)


$scope.users = response.data;
$scope.setKey = function (userId){
alert(userId)
if(localStorage){
localStorage.setItem("userId", userId)
} else {
alert("No support of localStorage")
return
}
}//function closed
});
});
    		#header{
color: green;
font-weight: bold;
}
  <!DOCTYPE html>
<html>
<head>
<title>HyperCrud</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
</head>
<body>
<!-- NAVBAR STARTS -->
<nav class="navbar navbar-default navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">HyperCrud</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li class="active"><a href="/">Home</a></li>
<li><a href="/about/">About</a></li>
<li><a href="/contact/">Contact</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Apps<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="/qAlarm/details/">qAlarm &raquo;</a></li>
<li><a href="/YtEdit/details/">YtEdit &raquo;</a></li>
<li><a href="/GWeather/details/">GWeather &raquo;</a></li>
<li role="separator" class="divider"></li>
<li><a href="/WadStore/details/">WadStore &raquo;</a></li>
<li><a href="/chatsAll/details/">chatsAll</a></li>
</ul>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li><a href="/login/">Login</a></li>
<li><a href="/register/">Register</a></li>
<li><a href="/services/">Services<span class="sr-only">(current)</span></a></li>
</ul>
</div>
</div>
</nav>
<!--NAVBAR ENDS-->
<br>
<br>


<div ng-app="hyperCrudApp" ng-controller="usersCtrl" class="container">
<div class="row">
<div class="col-sm-12 col-md-12">
<center>
<h1 id="header"> Users </h1>
</center>
</div>
</div>


<div class="row" >
<!--ITERATING USERS LIST-->
<div class="col-sm-6 col-md-4" ng-repeat="user in users">
<div class="thumbnail">
<center>
<img src="https://cdn2.iconfinder.com/data/icons/users-2/512/User_1-512.png" alt="Image - \{\{user.name}}" class="img-responsive img-circle" style="width: 100px">
<hr>
</center>
<div class="caption">
<center>
<h3>\{\{user.name}}</h3>
<p>\{\{user.email}}</p>
<p>+91 \{\{user.phone}}</p>
<p>\{\{user.address.city}}</p>
</center>
</div>
<div class="caption">
<a href="/users/delete/\{\{user.id}}/" role="button" class="btn btn-danger btn-block" ng-click="setKey(user.id)">DELETE</a>
<a href="/users/update/\{\{user.id}}/" role="button" class="btn btn-success btn-block" ng-click="setKey(user.id)">UPDATE</a>
</div>
</div>
</div>


<div class="col-sm-6 col-md-4">
<div class="thumbnail">
<a href="/regiser/">
<img src="http://img.bhs4.com/b7/b/b7b76402439268b532e3429b3f1d1db0b28651d5_large.jpg" alt="Register Image" class="img-responsive img-circle" style="width: 100%">
</a>
</div>
</div>
</div>
<!--ROW ENDS-->
</div>




</body>
</html>

小开

HTML:

<div  ng-repeat="scannedDevice in ScanResult">
<!--GridStarts-->
<div >
<img ng-src=\{\{'./assets/img/PlaceHolder/Test.png'}}
<!--Pass Param-->
ng-click="connectDevice(scannedDevice.id)"
altSrc="\{\{'./assets/img/PlaceHolder/user_place_holder.png'}}"
onerror="this.src = $(this).attr('altSrc')">
</div>
</div>

Java脚本:

   //Global Variables
var  ANGULAR_APP = angular.module('TestApp',[]);


ANGULAR_APP .controller('TestCtrl',['$scope', function($scope) {


//Variables
$scope.ScanResult = [];


//Pass Parameter
$scope.connectDevice = function(deviceID) {
alert("Connecting : "+deviceID );
};
}]);
小开

这里是ng repeat with ng click函数，并使用滑块添加

<script>
var app = angular.module('MyApp', [])
app.controller('MyController', function ($scope) {
$scope.employees = [
{ 'id': '001', 'name': 'Alpha', 'joinDate': '05/17/2015', 'age': 37 },
{ 'id': '002', 'name': 'Bravo', 'joinDate': '03/25/2016', 'age': 27 },
{ 'id': '003', 'name': 'Charlie', 'joinDate': '09/11/2015', 'age': 29 },
{ 'id': '004', 'name': 'Delta', 'joinDate': '09/11/2015', 'age': 19 },
{ 'id': '005', 'name': 'Echo', 'joinDate': '03/09/2014', 'age': 32 }
]


//This will hide the DIV by default.
$scope.IsVisible = false;
$scope.ShowHide = function () {
//If DIV is visible it will be hidden and vice versa.
$scope.IsVisible = $scope.IsVisible ? false : true;
}
});
</script>
</head>


<body>


<div class="container" ng-app="MyApp" ng-controller="MyController">
<input type="checkbox" value="checkbox1" ng-click="ShowHide()" /> checkbox1
<div id="mixedSlider">
<div class="MS-content">
<div class="item"  ng-repeat="emps in employees"  ng-show = "IsVisible">
<div class="subitem">
<p>\{\{emps.id}}</p>
<p>\{\{emps.name}}</p>
<p>\{\{emps.age}}</p>
</div>
</div>




</div>
<div class="MS-controls">
<button class="MS-left"><i class="fa fa-angle-left" aria-hidden="true"></i></button>
<button class="MS-right"><i class="fa fa-angle-right" aria-hidden="true"></i></button>
</div>
</div>
</div>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script src="js/multislider.js"></script>
<script>


$('#mixedSlider').multislider({
duration: 750,
interval: false
});
</script>

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