我的html上有一个div，编码如下：
<div ng-repeat="loss in Model.plDetails track by $index">
<div class="col-sm-2">
<div class="input-group">
<input type="text" class="form-control" datepicker-popup="MM/dd/yyyy" ng-model="loss.Date" id="loss-date{{$index+1}}"
datepicker-pattern="((0[13578]|1[02])[-/]31[-/](18|19|20)[0-9]{2})|((01|0[3-9]|1[1-2])[-/](29|30)[-/](18|19|20)[0-9]{2})|((0[1-9]|1[0-2])[-/](0[1-9]|1[0-9]|2[0-8])[-/](18|19|20)[0-9]{2})|((02)[-/]29[-/](((18|19|20)(04|08|[2468][048]|[13579][26]))|2000))"
is-open="datePicker{{$index+1}}.opened" max="maxDate" max-date="maxDate" date-format placeholder="MM/DD/YYYY"/>
<span class="input-group-btn">
<button type="button" class="btn btn-default" ng-click="open($event,'datePicker{{$index+1}}')"><i class="icon icon-calendar"></i></button>
</span>
</div>
</div>
<div class="col-sm-2">
<input type="number" ng-model="loss.amount" placeholder="$ Amount" />
</div>
<div class="col-sm-2">
<select ng-model="loss.type" placeholder="Loss Type">
<option value="0"></option>
<option value="2">Test</option>
</select>
</div>
<div class="col-sm-2">
Add Line
</div>
</div>
＆＃34;打开＆＃34;函数在我的javascript中编码为：
$scope.open = function ($event, targetDatePicker) {
$event.preventDefault();
$event.stopPropagation();
$scope[targetDatePicker].opened = !$scope[targetDatePicker].opened;
}
问题是，当我尝试运行此代码时，我首先得到一个错误＆＃34;语法错误：令牌＆＃39; {＆＃39;表达式[datePicker {{$ index + 1}}的第11列是一个意外的标记。已打开]从[{{$ index + 1}}开始。已打开]。＆＃34;这是在定义了is-open的代码行上。
如果我将is-open更改为datePicker1.opened，它的工作原理会超出错误（但从长远来看，我的代码不会工作，因为我需要最后一个数字是可变的）但是还有另一个问题。单击日历图标以触发ng-click事件时，出现错误＆＃34;无法读取属性＆＃39;打开＆＃39;未定义＆＃34;因为＆＃34; targetDatePicker＆＃34;而被抛出被解释为不存在的datePicker {{$ index + 1}}。
必须有一种方法来评估这些值，以便它们以datePicker1，datePicker2等形式出现......
更新：我还尝试了This StackOverflow Answer处的代码。我尝试将代码设置为：
$scope.datePicker = {};
$scope.open = function ($event, idx) {
$event.preventDefault();
$event.stopPropagation();
$scope.datePicker['idx' + idx].opened = !$scope.datePicker['idx' + idx].opened;
};
将HTML设为<input type="text" class="form-control ng-pristine ng-valid ng-isolate-scope ng-empty ng-valid-date ng-touched" datepicker-popup="MM/dd/yyyy" ng-model="loss.Date" id="loss-date1" datepicker-pattern="((0[13578]|1[02])[-/]31[-/](18|19|20)[0-9]{2})|((01|0[3-9]|1[1-2])[-/](29|30)[-/](18|19|20)[0-9]{2})|((0[1-9]|1[0-2])[-/](0[1-9]|1[0-9]|2[0-8])[-/](18|19|20)[0-9]{2})|((02)[-/]29[-/](((18|19|20)(04|08|[2468][048]|[13579][26]))|2000))" is-open="datePicker['idx'+$index].opened" max="maxDate" max-date="maxDate" date-format="" placeholder="MM/DD/YYYY">但我仍然收到Cannot read property 'opened' of undefined错误。
答案 0 :(得分：1)
第一个错误，您在}属性中缺少is-open，这会使角度不解析它而只是文本，所以
is-open="datePicker{{$index+1}.opened"
将其更改为
is-open="datePicker{{$index+1}}.opened"
现在，在你的ng-click中，你不需要双{{}}，angularjs不需要评估它来将字符串传递给函数，你只需要这样的东西
ng-click="open($event,'datePicker'+($index+1))"
这将是神奇的。
我不知道你使用的日期选择器是如何工作的，我只是指出我在你的代码中看到的错误。希望它有所帮助
<强> EDITED
我写了一个说明性的例子，只是为了让你看到语法，也许你可以找到一段可以帮助你解决问题的代码。
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>.:[Angularjs test]:.</title>
<script type="text/javascript" src="jquery-1.10.2.js"></script>
<script type="text/javascript" src="angular.js"></script>
<script type="text/javascript">
(function () {
'use strict';
angular.module('kstr', []);
angular
.module('kstr')
.controller('KstrController', KstrController);
function KstrController(){
var self = this;
self.myList = ["kstro", "jhon", "jane"];
self.datePicker = {};
self.printit = function(index){
console.log(self.datePicker[index]);
self.datePicker[index].opened = !self.datePicker[index].opened;
}
}
})();
</script>
</head>
<body data-ng-app="kstr">
<div class="row" data-ng-controller="KstrController as kstr">
<div data-ng-repeat="myItem in kstr.myList track by $index">
<p>My item "{{myItem}}" with "datePicker{{$index+1}}"</p>
<div data-ng-init="kstr.datePicker[$index+1]={opened:false}">
<pre>var datePicker[{{$index+1}}].opened = {{kstr.datePicker[$index+1].opened}}</pre>
</div>
<div>
<button type="button" data-ng-click="kstr.printit($index+1)">Change it</button>
</div>
</div>
</div>
</body>
</html>
答案 1 :(得分：0)
所以我在这里解决了这个问题。我最终将打开的东西移动到我的对象，细节必然会被绑定。这是通过open函数传递的，现在似乎都可以正常工作。
$scope.Model.plDetails = [{ date: "", amount: "", opened: false, type: 1 }];
$scope.open= function ($event, loss) {
$event.preventDefault();
$event.stopPropagation();
loss.opened = !loss.opened;
};
$scope.addLossItem = function () {
$scope.Model.plDetails.push({ date: "", amount: "", opened: false, type: 1 });
};
$scope.removeLossItemAt = function (itemToRemove) {
if ($scope.Model.plDetails.length === 1)
return;
$scope.Model.plDetails.splice($scope.Model.plDetails.indexOf(itemToRemove), 1);
};
我的html设置为：
<div class="row" ng-if="Model.ApplicantLosses==0">
<div class="col-xs-12">
<div class="col-xs-12">
<div class="form-group">
<h4>Prior Loss Details</h4>
<div class="form-inline">
<div ng-repeat="loss in Model.plDetails track by $index" style="margin-top: 10px">
<div class="col-sm-1" style="width: 2%; margin-top: inherit;">
<label id="{{$index+1}}">{{$index+1}}</label>
</div>
<div class="col-sm-2 form-group">
<div class="input-group">
<input type="text" class="form-control" datepicker-popup="MM/dd/yyyy" ng-model="loss.Date" id="loss-date{{$index+1}}"
datepicker-pattern="((0[13578]|1[02])[-/]31[-/](18|19|20)[0-9]{2})|((01|0[3-9]|1[1-2])[-/](29|30)[-/](18|19|20)[0-9]{2})|((0[1-9]|1[0-2])[-/](0[1-9]|1[0-9]|2[0-8])[-/](18|19|20)[0-9]{2})|((02)[-/]29[-/](((18|19|20)(04|08|[2468][048]|[13579][26]))|2000))"
is-open="loss.opened" max="maxDate" max-date="maxDate" date-format placeholder="MM/DD/YYYY" />
<span class="input-group-btn">
<button type="button" class="btn btn-default" ng-click="open($event,loss)"><i class="icon icon-calendar"></i></button>
</span>
</div>
</div>
<div class="form-group col-sm-9">
<div class="col-sm-3" style="display: inline-table">
<input type="number" ng-model="loss.amount" placeholder="$ Amount" />
</div>
<div class="col-sm-3" style="display: inline-table">
<select id="loss-type{{$index+1}}" ng-model="loss.type" ng-options="lossType.idng-show as lossType.name for lossType in lossTypeParameters" class="form-control" required>
<option value="" disabled>Loss Type</option>
</select>
</div>
<div class="col-sm-3" style="display: inline-table">
<span><a id="loss-del-item{{$index+1}}" ng-show="Model.plDetails.length > 1" style="vertical-align: middle" ng-click="removeLossItemAt(loss)"><i class="icon icon-minus-square-o icon-lg"></i> Remove Line</a></span>
<span ng-show="Model.plDetails.length != 2 && $index+1 == Model.plDetails.length"><a id="loss-add-item{{$index+1}}" ng-click="addLossItem()"><i class="icon icon-plus-square-o icon-lg"></i> Add Line</a></span>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>