Question

我有一个简单的ng-reapt，显示一个值列表..在某些输出中，我有几个ng-if显示/隐藏DIV。

HTML：

<div ng-repeat="details in myDataSet">

    <p>{{ details.Name }}</p>
    <p>{{ details.DOB  }}</p>

       <div ng-if="details.Payment[0].Status == '0'">
           <p>No payment</p>
       </div>

       <div ng-if="details.Payment[0].Status == '1' || details.Payment[0].Status == '2'">
           <p>Late</p>
       </div>

       <div ng-if="details.Payment[0].Status == '3' || details.Payment[0].Status == '4' || details.Payment[0].Status == '5'">
           <p>Some payment made</p>
       </div>

       <div ng-if="details.Payment[0].Status == '6'">
           <p>Late and further taken out</p>
       </div>

       <div ng-if="details.Payment[0].Status != '0' || details.Payment[0].Status != '1' || details.Payment[0].Status != '2' || details.Payment[0].Status != '3' || details.Payment[0].Status != '4' || details.Payment[0].Status != '5' || details.Payment[0].Status != '6'">
           <p>Error</p>
       </div>

    <p>{{ details.Gender}}</p>

</div>

我的应用在尝试显示!=部分时显示错误。

Answer 1

最好使用ng-switch

<div ng-switch on="details.Payment[0].Status">
    <div ng-switch-when="1">
        <!-- code to render a large video block-->
    </div>
    <div ng-switch-default>
        <!-- code to render the regular video block -->
    </div>
</div>

Answer 2

这是一个带过滤器的漂亮解决方案：

app.filter('status', function() {

  var statusDict = {
    0: "No payment",
    1: "Late",
    2: "Late",
    3: "Some payment made",
    4: "Some payment made",
    5: "Some payment made",
    6: "Late and further taken out"
  };

  return function(status) {
    return statusDict[status] || 'Error';
  };
});

标记：

<div ng-repeat="details in myDataSet">
  <p>{{ details.Name }}</p>
  <p>{{ details.DOB  }}</p>
  <p>{{ details.Payment[0].Status | status }}</p>
  <p>{{ details.Gender}}</p>
</div>

Answer 3

部分内容中的所有不必要的逻辑，将其减少为类似的内容并在控制器/服务中处理您的数据

<div ng-repeat="details in myDataSet">

    <p>{{ details.Name }}</p>
    <p>{{ details.DOB  }}</p>
    <p>{{details.Payment[0].StatusName}}</p>
    <p>{{ details.Gender}}</p>

</div>

JS：

angular.forEach(myDataSet.Payment, function (payment) {
  if(payment.Status === 0){
    payment.StatusName = 'No Payment';
  } else if(payment.Status === 1 || payment.Status === 2){
    payment.StatusName = 'Late';
  } else if(payment.Status === 3 || payment.Status === 4 || payment.Status === 5){
    payment.StatusName = 'Some payment made';
  } else if(payment.Status === 6){
    payment.StatusName = 'Late and further taken out';
  }else{
    payment.StatusName = 'Error';
  }
})

Answer 4

试试这个：

ng-if="details.Payment[0].Status != '6'".

很抱歉，但我认为您可以使用ng-show或ng-hide。

Answer 5

尝试以下解决方案

ng-if="details.Payment[0].Status != '0'"

Use below condition(! prefix with true condition) instead of above

ng-if="!details.Payment[0].Status == '0'"

Answer 6

我不喜欢＆＃34; hacks＆＃34;但是在最后期限的快速捏中我已经完成了这个

<li ng-if="edit === false && filtered.length === 0">
    <p ng-if="group.title != 'Dispatcher News'" style="padding: 5px">No links in group.</p>
</li>

是的，我有另一个内部嵌套的ng-if，我只是不喜欢在一行上有太多条件。

Answer 7

这里有很好的解决方案，但它们无助于理解问题实际发生的原因。

但这很简单，你只需要了解逻辑OR ||是如何工作的。当其中任何一方评估为true时，整个表达式将评估为true。

现在让我们来看看你的情况。假设整个details.Payment[0].Status为Status，为简洁起见，这是一个数字。然后我们有Status != 0 || Status != 1 || ...。

想象一下Status = 1：

( 1 != 0 || 1 != 1 || ... ) =
(  true  || false  || ... ) =
(       true       || ... ) = ... = true

现在想象一下Status = 0：

( 0 != 0 || 0 != 1 || ... ) =
( false  ||  true  || ... ) =
(       true       || ... ) = ... = true

正如你所拥有的那样...并不重要，因为前两个表达式的逻辑OR会给你true这将是完整表达的结果。

您实际需要的是合乎逻辑的AND &&，只有当两边都是true时才会成立。

Answer 8

现在可以使用ng-switch-when-separator

从AngularJS 1.5.10开始

var app = angular.module("app", []); 

app.controller("ctrl", function($scope) {
    $scope.myDataSet = [{Name: 'Michelle', Gender: 'Female', DOB: '01/12/1986', Payment: [{Status: '0'}]},{Name: 'Steve', Gender: 'Male', DOB: '11/12/1982', Payment: [{Status: '1'}]},{Name: 'Dan', Gender: 'Male', DOB: '03/22/1976', Payment: [{Status: '2'}]},{Name: 'Doug', Gender: 'Male', DOB: '02/02/1980', Payment: [{Status: '3'}]},{Name: 'Mary', Gender: 'Female', DOB: '04/02/1976', Payment: [{Status: '4'}]},{Name: 'Cheyenne', Gender: 'Female', DOB: '07/10/1981', Payment: [{Status: '5'}]},{Name: 'Bob', Gender: 'Male', DOB: '02/16/1990', Payment: [{Status: '6'}]},{Name: 'Bad data', Gender: 'Blank', DOB: '01/01/1970', Payment: [{Status: '7'}]}];
});

<script src="https://code.angularjs.org/1.5.10/angular.min.js"></script>
<div ng-app="app" ng-controller="ctrl">
    <div ng-repeat="details in myDataSet" ng-switch on="details.Payment[0].Status">

        <p>{{ details.Name }}</p>
        <p>{{ details.DOB  }}</p>

        <div ng-switch-when="0">
            <p>No payment</p>
        </div>

        <div ng-switch-when="1|2" ng-switch-when-separator="|">
            <p>Late</p>
        </div>

        <div ng-switch-when="3|4|5" ng-switch-when-separator="|">
            <p>Some payment made</p>
        </div>

        <div ng-switch-when="6">
            <p>Late and further taken out</p>
        </div>

        <div ng-switch-default>
            <p>Error</p>
        </div>
        
        <p>{{ details.Gender}}</p>

    </div>
</div>

ng-if，不等于？

8 个答案: