[英]Filter between two components AngularJS
我知道我可以这样过滤:
<input type="search" ng-model="searchTable">
<table>
<thead>
<tr>
<th>First Name</th>
<th>Last Name</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="row in $ctrl.rows | filter: searchTable">
<td>{{ row.firstName }}</td>
<td>{{ row.lastName }}</td>
</tr>
</tbody>
</table>
如何过滤<tr ng-repeat="row in $ctrl.rows | filter: searchTable">
的<input type="search" ng-model="searchTable">
和<tr ng-repeat="row in $ctrl.rows | filter: searchTable">
是否位于单独的组件中?
这是一个简单的小提琴 。
据我了解,我需要在searchComponent
上添加$onChanges()
和表达式绑定bindings: { onChange: '&' }
,但并不完全了解如何实现它。
谢谢
这是工作中的小提琴。 您将搜索词存储在父组件中,并将其传递给两个子组件。
var app = angular.module('app', []); app.controller('appController', function() { this.search = ""; }); app.component('searchComponent', { template: ` <h4>{{ $ctrl.title }}</h4> <label>Search table</label> <input type="search" ng-model="$ctrl.search"> `, controller: function() { this.title = 'Search Component'; }, bindings: { search: "=" } }); app.component('tableComponent', { template: ` <h4>{{ $ctrl.title }}</h4> <!-- <p>This works</p> <label>Search table</label> <input type="search" ng-model="searchTable"> --> <table> <thead> <tr> <th>First Name</th> <th>Last Name</th> </tr> </thead> <tbody> <tr ng-repeat="row in $ctrl.rows | filter: $ctrl.search"> <td>{{ row.firstName }}</td> <td>{{ row.lastName }}</td> </tr> </tbody> </table> `, controller: function() { this.title = 'Table Component'; this.rows = [ {firstName: 'Zulu', lastName: 'Apple'}, {firstName: 'Alice', lastName: 'xRay'}, {firstName: 'Fred', lastName: 'Rogers'} ]; }, bindings: { search: "<" } });
body { font-family: 'Arial', sans-serif; } table { border-collapse: collapse; } td, th { border: 1px solid grey; padding: 5px; } label { display: block; } input { margin-bottom: 10px; }
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.7.0/angular.min.js"></script> <div ng-app="app"> <div ng-controller="appController"> <h3>Filter Between Components</h3> <search-component search="search"></search-component> <table-component search="search"></table-component> </div> </div>
您可以尝试在组件中进行发射-之间的通信,如下面的代码所示。 另外,请使用给定场景的工作示例检查更新的jsfiddle 。
搜索组件控制器:
$scope.$watch('searchTable', function() {
$rootScope.$emit('onEmitSearchData', $scope.searchTable);
});
表组件控制器:
$rootScope.$on('onEmitSearchData', function(event, data) {
$scope.searchTable = data;
});
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